Question

The measures of two complementary angles are ( 2x-7) degree and (x+4) degree. Find the value of x​

Answer 1

Answer:

(2x-7)+(x+4) = 90° because they are complementary angles,

or, 2x-7+x+4 = 90°

or, 3x -3 = 90°

or, 3x = 90+3 = 93°

or, x = $\huge \frac{93}{3} = 31$

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Answer 2

Answer:

(2x-7)+(x+4)=90°

=>2x-7+x+4=90°

=>3x-3=90°

=>3x=90+3

=>x=93/3

=>x=31