Question

Find the value of x in the figure shown.

Answer 1

x = 17

Explanation:

a straight line equals 180º so each side is 90º.

90 - 39 = 51

3 x __ = 51

3 x 17 = 51

so..x = 17

Answer 2

17

Explanation:

3x +39 =90

3x =90-39

3x=51

make it in fraction

3x over 3 equals to 51 over 3

simplify

= 51