81=10w-w

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Solution for 81=10w-w equation:


Simplifying
81 = 10w + -1w

Combine like terms: 10w + -1w = 9w
81 = 9w

Solving
81 = 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 + -9w = 9w + -9w

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

Add '-81' to each side of the equation.
81 + -81 + -9w = 0 + -81

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

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

Divide each side by '-9'.
w = 9

Simplifying
w = 9

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