Question

Two angles are supplementary. One angle measures 2 x , and the other angle measures 3 x - 15. Which equation can you use to find the measure of each angle? 2 x + 3 x - 15 = 90° 2 x - 3 x - 15 = 180° 2 x - 3 x - 15 = 90° 2 x + 3 x - 15 = 180

Answer 1

The last one because supplementary equals 180. and the other one The second one doesn't make sense with its equation.

Answer 2

Supplementary angles add up to 180 degrees so you would take the 2 angles and add them together and set it equal to 180.

2x+3x-15=180 (Option 4)

Hope this helps!