81+2x+(6x-7)=180

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Solution for 81+2x+(6x-7)=180 equation:


Simplifying
81 + 2x + (6x + -7) = 180

Reorder the terms:
81 + 2x + (-7 + 6x) = 180

Remove parenthesis around (-7 + 6x)
81 + 2x + -7 + 6x = 180

Reorder the terms:
81 + -7 + 2x + 6x = 180

Combine like terms: 81 + -7 = 74
74 + 2x + 6x = 180

Combine like terms: 2x + 6x = 8x
74 + 8x = 180

Solving
74 + 8x = 180

Solving for variable 'x'.

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

Add '-74' to each side of the equation.
74 + -74 + 8x = 180 + -74

Combine like terms: 74 + -74 = 0
0 + 8x = 180 + -74
8x = 180 + -74

Combine like terms: 180 + -74 = 106
8x = 106

Divide each side by '8'.
x = 13.25

Simplifying
x = 13.25

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