Question

The angle measures for 2 supplementary angles are 3x and 2x +40.
What is the value of x?

Answer 1

28°

Explanation:

If the angles are supplementary, they add up to 180°.

(3x) + (2x + 40) = 180

5x + 40 = 180

- 40 - 40

5x = 140

x = 28°