180=280-w

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Solution for 180=280-w equation:


Simplifying
180 = 280 + -1w

Solving
180 = 280 + -1w

Solving for variable 'w'.

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

Add 'w' to each side of the equation.
180 + w = 280 + -1w + w

Combine like terms: -1w + w = 0
180 + w = 280 + 0
180 + w = 280

Add '-180' to each side of the equation.
180 + -180 + w = 280 + -180

Combine like terms: 180 + -180 = 0
0 + w = 280 + -180
w = 280 + -180

Combine like terms: 280 + -180 = 100
w = 100

Simplifying
w = 100

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