90-3w=7w

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Solution for 90-3w=7w equation:


Simplifying
90 + -3w = 7w

Solving
90 + -3w = 7w

Solving for variable 'w'.

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

Add '-7w' to each side of the equation.
90 + -3w + -7w = 7w + -7w

Combine like terms: -3w + -7w = -10w
90 + -10w = 7w + -7w

Combine like terms: 7w + -7w = 0
90 + -10w = 0

Add '-90' to each side of the equation.
90 + -90 + -10w = 0 + -90

Combine like terms: 90 + -90 = 0
0 + -10w = 0 + -90
-10w = 0 + -90

Combine like terms: 0 + -90 = -90
-10w = -90

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

Simplifying
w = 9

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