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How do I solve 2x + 7 = 15 + 10x? And show my work?

I seriously have tried but I still can't figure it out and I need to know how to do it!

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Solve Equation with Steps Step-by-Step Math Problem Solver

The next example shows how we can generate equivalent ... Example 1 Solve 5x - 7 = 2x ... It is often necessary to solve formulas or equations in which there is more ...

How do you solve 10x + 2- 2x = 8( x + 1) - 7? | Socratic

... (red)(8) * color(blue)(x)) + (color(red)(8) * color(blue)(1)) - 7 10x + 2 - 2x = 8x + 8 - 7 Next, ... How do you solve #10x + 2- 2x = 8( x + 1) - 7 ... Do you ...

Solve an Inequality - WebMath

Solve an Inequality. This page will show you how to solve a relationship involving an inequality. ... and select the variable to solve for:

5 Ways to Solve for X - wikiHow - How to do anything

How to Solve for X. There are a number of ways to solve for x, whether you're working with exponents and radicals or if you just have to do some division or ...

How do I solve 10x-3(7-2x)+18 - Brainly.com

How do I solve 10x-3(7-2x)+18 2. Ask for details ; Follow; ... we change the equation. 10X+(-3)(7-2X) ... and you need to solve for X, ...

solve linear equation w/many operations

More Than One Operation Equations Solve Linear Equation w/Many Operations Solutions to a Linear ... Solve & show work. 11.) 3(x+1)+2(x-3)=9 ... 15.) 4x - 5 = 4x ...

How do you solve 2x^2 - 10x + 7 = 0? | Socratic

Socratic Meta Ask question ... How do you solve #2x^2 - 10x + 7 = 0#? ... Aug 15, 2015 ...

Checking Answers Using Algebra Calculator - MathPapa

Checking Answers Using Algebra Calculator. ... Solve 2x+3=15. ... First type the equation 2x+3=15. Then type the @ symbol.

Solve using the elimination method. Show your work.

Problem: Solve using the elimination method. Show your work. Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 10x + 5y = 52.5 30x – 7y = 80.5 1) 10x + 5y = 52.5 2) 30x – 7y = 80.5 Multiply equation 1 by 3. 3(10x + 5y) = 52.5 * 3 3) 30x + 15y = 157.5 Subtract equatioin 2 from equation 3.   30x + 15y = 157.5 -(30x –  7y =  80.5) -------------------------            22y =  77 22y = 77 y = 77/22 y = 3.5 With that, use equation 1 to solve for x. 10x + 5y = 52.5 10x + 5(3.5) = 52.5 10x + 17.5 = 52.5 10x = 52.5 - 17.5 10x = 35 x = 35/10 x = 3.5 Check the values. 30x – 7y = 80.5 30(3.5) – 7(3.5) = 80.5 105 - 24.5 = 80.5 80.5 = 80.5 Answer: x = 3.5, y = 3.5

(-3/10,-2) 10x-9y=15?

Problem: (-3/10,-2) 10x-9y=15? Show how to work the problem I know that this is the solution. A single equation with two variables cannot be solved for a unique value in either variable. It's true that the point you gave is a solution, but it is only one of an infinite number of solutions. Re-write the equation in slope-intercept form. 10x - 9y = 15 -9y = -10x + 15 y = 10/9 x - 15/9 y = 10/9 x - 5/3 Now, you can plug ANY value for x into the equation, and you will get a corresponding value for y; every time. Put 3/2 in for x and solve the equation. 10x - 9y = 15 10(3/2) - 9y = 15 15 - 9y = 15 15 - 9y - 15 = 15 - 15 -9y = 0 -9y/-9 = 0/-9 y = 0 So, (3/2, 0) is a solution. Now, put -9 in for x. 10x - 9y = 15 10(-9) - 9y = 15 -90 - 9y = 15 -90 - 9y + 90 = 15 + 90 -9y = 105 -9y/-9 = 105/-9 y = -11 2/3 The fact is, you have the equation for a line. ANY point along that line is a solution to the equation.

solve equation and show working out please 5(1-2x)=2(4-x)

Wow... you got the right answer which is -0.375...  But mine is in fraction form: 5 ( 1 - 2x ) = 2 ( 4 - x )          simplify by multiplying 5 - 10x      =     8 - 2x             by grouping -10x + 2x = 8 - 5                    perform the indicated operations        -8x     =   3                        divide both sides by -8            x     =     - 3 / 8   or in decimal is -0.375

7x+2y=5 and 3y=16-2x

7x+2y=5 and 3y=16-2x  solve each of the following systems using the method of youre choice. However, you must show an organize work. We could solve both equations, but what would we have? We would still have two equations. Each would show y in terms of x, or x in terms of y. We still wouldn't know the values of x or y. E.g., y = 16/3 - 2/3 x (the second equation) When you are given two equations in the same problem, you can be sure that you are supposed to solve them simultaneously, to find the one unique pair of x,y values that will solve both equations. Let's proceed with that thought in mind. 7x+2y=5   3y=16-2x -> rewrite the second:  2x + 3y = 16 We'll eliminate the y terms by subtracting one equation from the other. To do that, the y terms must be the same. 3 * (7x+2y) = 3 * 5           21x + 6y = 15 2 * (2x + 3y) = 2 * 16      (  4x + 6y = 32)                                     ----------------------- Subtract and get---->       17x         = -17 17x = -17 x = -1 We will substitute that x value into the first equation. 7*(-1) +2y = 5 -7 + 2y = 5 2y = 12 y = 6 Finally, substitute both values, x and y, into the second equation. 3 * 6 = 16 - (2 * -1) 18 = 16 - (-2) 18 = 18 Now, you know that x=-1 and y=6 solves both equations at the same time. This tells you that if you plot the two equations on the same graph, you will have two lines that intersect at (-1, 6).

How do I solve 2x + 7 = 15 + 10x? And show my work?

2x+7=15+10x -8x=15-7=8 x=-1

how do you solve how many square yards in 25 acres

how do you solve how many square yards in 25 acres I know it equals 121000 square yards.  How would you show your work? If you know that the total is 121,000 square yards, you must have multiplied 25 acres by 4,840 square yards per acre 25 acres * 4,480 sq yds / acre = 121,000 sq yds

how do you solve this equation using a fact family 138=5+98=27 show all work please

RONG...138 DONT =27

18% of \$527 0.18(527) = \$94.86

word problem

Sean bought a bag of mixed candies. In the bag there were 25 Smarties an Reese's peanut Butter cups. Smarties cost \$0.15 each an reese's are \$0.75 each. If he paid \$15.15 , how many Smarties an reese's did he buy? A. write an expression for the number of smarties . write an expression for the number of Reese's. B. write an algebraic equation using the expressions above. C. solve your equation (show all work) D. tell how many smarties an reese's were bought. please write : a,b,c,d after each answer S = 25 - R    R = 25 - S             (a)  These don't get us anywhere S + R = 25 and 0.15S + 0.75R = 15.15        (b)  One equation won't do   3 * (S + R) = 3 * 25     3S + 3R = 75    to equalize the R terms 4 * (0.15S + 0.75R) = 4 * 15.15 0.6S + 3R = 60.60 We have two equations we can subtract, leaving only the S term   3S    + 3R = 75 -(0.6S + 3R = 60.60) ----------------------------- 2.4S           = 14.40 2.4S = 14.40 S = 6 R = 25 - S = 25 - 6 = 19       (c) There were 6 Smarties and 19 Reese's    (d) 6 * 0.15 + 19 * 0.75 = 0.90 + 14.25 = 15.15