Question

Angles A and B are supplementary angles. Angle A measures 89° and angle B measures (2x + 5)°. Find x.

Answer 1

x=43

Explanation:

supplementary angles add up to 180. Therefore 89+2x+5=180.2x=180-94

2x=86 and x is therefore 43.

Answer 2

x=43

Explanation:

supplementary angles add up to 180. Therefore 89+2x+5=180.2x=180-94

2x=86 and x is therefore 43.