21-w=156

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Solution for 21-w=156 equation:


Simplifying
21 + -1w = 156

Solving
21 + -1w = 156

Solving for variable 'w'.

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

Add '-21' to each side of the equation.
21 + -21 + -1w = 156 + -21

Combine like terms: 21 + -21 = 0
0 + -1w = 156 + -21
-1w = 156 + -21

Combine like terms: 156 + -21 = 135
-1w = 135

Divide each side by '-1'.
w = -135

Simplifying
w = -135

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