9w-16w=-21

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Solution for 9w-16w=-21 equation: 


Simplifying
9w + -16w = -21

Combine like terms: 9w + -16w = -7w
-7w = -21

Solving
-7w = -21

Solving for variable 'w'.

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

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

Simplifying
w = 3

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