Question

a. 3x - 8 = -7x + 18

Explanation:

Step1: Add 7x to both sides

$3x + 7x - 8 = -7x + 7x + 18$
$10x - 8 = 18$

Step2: Add 8 to both sides

$10x - 8 + 8 = 18 + 8$
$10x = 26$

Step3: Divide by 10

$x = \frac{26}{10}$
$x = \frac{13}{5}$

Answer:

$x = \frac{13}{5}$ or $x = 2.6$