Question

What is the solution to the equation?

2(x – 7) = 10x + 18

A. x = 4


B. x = - 15/8



C. x = 15/8


D. x = -4

Answer 1

Hi there...

2(x -7) = 10x + 18
2x - 14 = 10x + 18
2x - 10x = 18 + 14
-8x = 32
Divide both sides by -8
-8x/-8 = 32/-8
x = -4


The correct option is D


Good luck :)

Answer 2

D. x=−4
Why?
Let's solve your equation step-by-step.
2(x−7)=10x+18
Simplify both sides of the equation.
2(x−7)=10x+18
Simplify:
2x−14=10x+18
Subtract 10x from both sides.
2x−14−10x=10x+18−10x
−8x−14=18
Add 14 to both sides.
−8x−14+14=18+14
−8x=32
Divide both sides by -8.
−8x−8=32−8
D. x=−4