Question

use the figure to find the value of x.
(13x + 10)°
166°
(a) write an equation to find x. make sure you use an \=\ sign in your answer.
equation: 13x + 10 = 180

Explanation:

Step1: Subtract 10 from both sides

$13x+10 - 10=180 - 10$
$13x = 170$

Step2: Divide both sides by 13

$x=\frac{170}{13}$

Answer:

$x=\frac{170}{13}$