90+(7x-5)+(2x-13)=180

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Solution for 90+(7x-5)+(2x-13)=180 equation:


Simplifying
90 + (7x + -5) + (2x + -13) = 180

Reorder the terms:
90 + (-5 + 7x) + (2x + -13) = 180

Remove parenthesis around (-5 + 7x)
90 + -5 + 7x + (2x + -13) = 180

Reorder the terms:
90 + -5 + 7x + (-13 + 2x) = 180

Remove parenthesis around (-13 + 2x)
90 + -5 + 7x + -13 + 2x = 180

Reorder the terms:
90 + -5 + -13 + 7x + 2x = 180

Combine like terms: 90 + -5 = 85
85 + -13 + 7x + 2x = 180

Combine like terms: 85 + -13 = 72
72 + 7x + 2x = 180

Combine like terms: 7x + 2x = 9x
72 + 9x = 180

Solving
72 + 9x = 180

Solving for variable 'x'.

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

Add '-72' to each side of the equation.
72 + -72 + 9x = 180 + -72

Combine like terms: 72 + -72 = 0
0 + 9x = 180 + -72
9x = 180 + -72

Combine like terms: 180 + -72 = 108
9x = 108

Divide each side by '9'.
x = 12

Simplifying
x = 12

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