SOLUTION: ABCD is a parallelogram ,if angle b is equal to 4x degrees & angel A is (2x-6), find x

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Question 416337: ABCD is a parallelogram ,if angle b is equal to 4x degrees & angel A is (2x-6), find x


Answer by poliphob3.14(115) About Me  (Show Source):
You can put this solution on YOUR website!
Solution: Since the opposite angels on parallelogram are equal we write:
2.(4x)+2(2x-6)=360, 12x=372, x=31.