.. If (4x + 7) and (5x – 7)° are a pair of complementary angles, find the angles.

asked Apr 22, 2021 221k views

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3 votes

Answer: x=10
Hope this helps :)

Damax answered Apr 23, 2021

by Damax

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5 votes

Answer:

4x +7+5x-7 =90 ( complementary angle)

4x+5x+7-7 =90

9x+0=90

9x=90

x=90÷9

x=10

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