7x+(6x-1)+90=180

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Solution for 7x+(6x-1)+90=180 equation:


Simplifying
7x + (6x + -1) + 90 = 180

Reorder the terms:
7x + (-1 + 6x) + 90 = 180

Remove parenthesis around (-1 + 6x)
7x + -1 + 6x + 90 = 180

Reorder the terms:
-1 + 90 + 7x + 6x = 180

Combine like terms: -1 + 90 = 89
89 + 7x + 6x = 180

Combine like terms: 7x + 6x = 13x
89 + 13x = 180

Solving
89 + 13x = 180

Solving for variable 'x'.

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

Add '-89' to each side of the equation.
89 + -89 + 13x = 180 + -89

Combine like terms: 89 + -89 = 0
0 + 13x = 180 + -89
13x = 180 + -89

Combine like terms: 180 + -89 = 91
13x = 91

Divide each side by '13'.
x = 7

Simplifying
x = 7

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