81=-3w-7w-9

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Solution for 81=-3w-7w-9 equation:


Simplifying
81 = -3w + -7w + -9

Reorder the terms:
81 = -9 + -3w + -7w

Combine like terms: -3w + -7w = -10w
81 = -9 + -10w

Solving
81 = -9 + -10w

Solving for variable 'w'.

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

Add '10w' to each side of the equation.
81 + 10w = -9 + -10w + 10w

Combine like terms: -10w + 10w = 0
81 + 10w = -9 + 0
81 + 10w = -9

Add '-81' to each side of the equation.
81 + -81 + 10w = -9 + -81

Combine like terms: 81 + -81 = 0
0 + 10w = -9 + -81
10w = -9 + -81

Combine like terms: -9 + -81 = -90
10w = -90

Divide each side by '10'.
w = -9

Simplifying
w = -9

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