8-w=21

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Solution for 8-w=21 equation: 


Simplifying
8 + -1w = 21

Solving
8 + -1w = 21

Solving for variable 'w'.

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

Add '-8' to each side of the equation.
8 + -8 + -1w = 21 + -8

Combine like terms: 8 + -8 = 0
0 + -1w = 21 + -8
-1w = 21 + -8

Combine like terms: 21 + -8 = 13
-1w = 13

Divide each side by '-1'.
w = -13

Simplifying
w = -13

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