Question

Please show all work(open the question to see the image)

Answer 1

9514 1404 393

Answer:

20

Explanation:

The two angles shown are complementary. The corner angles in a rectangle are right angles: 90°.

(4x -12) +(x +2) = 90

5x = 100 . . . . . . collect terms, add 10

x = 20 . . . . . . . . divide by 5