81=5w-9

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Solution for 81=5w-9 equation:


Simplifying
81 = 5w + -9

Reorder the terms:
81 = -9 + 5w

Solving
81 = -9 + 5w

Solving for variable 'w'.

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

Add '-5w' to each side of the equation.
81 + -5w = -9 + 5w + -5w

Combine like terms: 5w + -5w = 0
81 + -5w = -9 + 0
81 + -5w = -9

Add '-81' to each side of the equation.
81 + -81 + -5w = -9 + -81

Combine like terms: 81 + -81 = 0
0 + -5w = -9 + -81
-5w = -9 + -81

Combine like terms: -9 + -81 = -90
-5w = -90

Divide each side by '-5'.
w = 18

Simplifying
w = 18

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