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25-10-2020
Mathematics

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7th grade math help me plzzzz

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25-10-2020

Answer: x = 18°

Complementary angles mean that the angles will add up to 90°.

90° = 4x+x

5x = 90° (divide both sides by 5 to isolate for x)

x = 18°

∴ x = 18°.

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