Question

The measures of the angles of a triangle are shown in the figure below. Solve for x.
(8x-9)°
63°
70°

Answer 1

Answer:

x= 7

Step-by-step explanation:

Theorem:  The sum of the angles of a triangle is 180

Memorize that theorem

8x - 9 + 63 + 70 = 180

8x + 124 = 180

8x = 56

x= 7