Question

What’s the value of x ???

Answer 1

Explanation:

4x - 10 + x = 90

simplify

5x = 100

divide both sides by 5

x = 20

hope this helps ! !

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Answer 2

x = 20

Explanation:

(4x - 10) and x are complementary angles, which means that adding them together would equal 90

(4x - 10) + x = 90

5x - 10 =90

+ 10 + 10

5x = 100

`(5x)/(5) = (100)/(5)`

`x = 20`