Question

If 2x+5=8x, then 12x=?

Answer 1

Answer:

$\boxed{10}$

Step-by-step explanation:

$2x+5=8x$

$\sf Subtract \ 8x \ from \ both \ sides.$

$2x+5-8x=8x-8x$

$-6x+5=0$

$\sf Subtract \ 5 \ from \ both \ sides.$

$-6x+5-5=0-5$

$-6x=-5$

$\sf Divide \ both \ sides \ by \ -6.$

$\displaystyle \frac{-6x}{-6} =\frac{-5}{-6}$

$\displaystyle x =\frac{5}{6}$

$\sf Evaluate \ 12x.$

$\displaystyle 12 \cdot \frac{5}{6} =\frac{60}{6} =10$

Answer 2

Answer:

10

Step-by-step explanation:

2x+5=8x: First, you are going to subtract 2x from both sides of the equation.

5=6x: Now divide 6x from each side of the equation.

x=5/6: now plug in 5/6 by multiplying this number by 12.

Your final answer should be 10.