Two complementary angle are (x+4)°and(2x-7)°.find the value of x.

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Solution

We know that ,
Complementary angles are those whose angle sum is 90°.

Hence,
According to the question,
(x + 4)° + (2x - 7)° = 90°
x+2x+4-7=90
(3x - 3)° = 90°
3x = 93
x = 93/3
x = 31°

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