213-w=255

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Solution for 213-w=255 equation: 


Simplifying
213 + -1w = 255

Solving
213 + -1w = 255

Solving for variable 'w'.

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

Add '-213' to each side of the equation.
213 + -213 + -1w = 255 + -213

Combine like terms: 213 + -213 = 0
0 + -1w = 255 + -213
-1w = 255 + -213

Combine like terms: 255 + -213 = 42
-1w = 42

Divide each side by '-1'.
w = -42

Simplifying
w = -42

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