5w-8w=-21

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Solution for 5w-8w=-21 equation: 


Simplifying
5w + -8w = -21

Combine like terms: 5w + -8w = -3w
-3w = -21

Solving
-3w = -21

Solving for variable 'w'.

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

Divide each side by '-3'.
w = 7

Simplifying
w = 7

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