Question

Find the value of x.
A) 71
B) 72
C) 73
D) 75

Answer 1

146 - 39 + x = 180

107 + x = 180

x = 73

Your answer is C) 73.

Answer 2

146° + (-39 +x)° = 180°

Subtract 146° on both sides.

(-39 +x)° = 180° - 146°

(-39 +x)° = 34°

(x - 39)° = 34°

Add 39° on both sides

x = 34° + 39°

x = 73°

Your final answer is C) 73.