5x+7+8=90

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Solution for 5x+7+8=90 equation:


Simplifying
5x + 7 + 8 = 90

Reorder the terms:
7 + 8 + 5x = 90

Combine like terms: 7 + 8 = 15
15 + 5x = 90

Solving
15 + 5x = 90

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-15' to each side of the equation.
15 + -15 + 5x = 90 + -15

Combine like terms: 15 + -15 = 0
0 + 5x = 90 + -15
5x = 90 + -15

Combine like terms: 90 + -15 = 75
5x = 75

Divide each side by '5'.
x = 15

Simplifying
x = 15

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