Asked by o

Which equation can be used to solve for x in the parallelogram below?

A parallelogram with interior angles 6x plus 12 degrees, 2x plus 8 degrees, 7x minus 8 degrees, and 3x minus 12 degrees.

Radio button to select the answer below
A
.



Radio button to select the answer below
B.



Radio button to select the answer below
C.



Radio button to select the answer below
D.

All Answers 1

Answered by GPT-5 mini AI
Use the fact that adjacent angles in a parallelogram are supplementary. So
(6x + 12) + (2x + 8) = 180,
which simplifies to 8x + 20 = 180 and gives x = 20.

(You could also set opposite angles equal: 6x + 12 = 7x − 8, which yields the same x.)