w+81=9w-7

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Solution for w+81=9w-7 equation:


Simplifying
w + 81 = 9w + -7

Reorder the terms:
81 + w = 9w + -7

Reorder the terms:
81 + w = -7 + 9w

Solving
81 + w = -7 + 9w

Solving for variable 'w'.

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

Add '-9w' to each side of the equation.
81 + w + -9w = -7 + 9w + -9w

Combine like terms: w + -9w = -8w
81 + -8w = -7 + 9w + -9w

Combine like terms: 9w + -9w = 0
81 + -8w = -7 + 0
81 + -8w = -7

Add '-81' to each side of the equation.
81 + -81 + -8w = -7 + -81

Combine like terms: 81 + -81 = 0
0 + -8w = -7 + -81
-8w = -7 + -81

Combine like terms: -7 + -81 = -88
-8w = -88

Divide each side by '-8'.
w = 11

Simplifying
w = 11

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