Question

What is the value of x?

Answer 1

x = 10

Explanation:

Consecutive angles in a parallelogram are supplementary, thus

∠ A + ∠ B = 180, substitute values

9x + 8 + 8x + 2 = 180, that is

17x + 10 = 180 ( subtract 10 from both sides )

17x = 170 ( divide both sides by 17 )

x = 10

Answer 2

x=10

Explanation:

Angle A +Angle B = 180°

therefore

8x+2+9x+8 =180

17x+10 = 180

17x = 170

x = 10