Home > MC2 > Chapter 6 > Lesson 6.2.6 > Problem6-125

6-125.

Simplify and solve each equation below for $x$. Show your work and record your final answer.

1. $24 = 3x + 3$

Begin isolating the variable by subtracting $3$ from each side.

$24 = 3x + 3$
$−3 −3$
$21 = 3x$
Divide each side by $3$.

$x = \frac{21}{3} = 7$

1. $12 + x = 2x – 2$

Follow the method of isolating the variable as presented in (a).