Question

Help a gal out please tysm

Answer 1

The 2 angles are supplementary angles and need to equal 180 degrees.

The sum of both angles equal 180:

8X + 12X = 180

Add:

20X = 180

Divide both sides by 20:

X = 180/20

X = 9

Now replace X with 9 and solve:

8X = 8(9) = 72 degrees

12X = 12(9) = 108 degrees