9-5w=-21

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Solution for 9-5w=-21 equation: 


Simplifying
9 + -5w = -21

Solving
9 + -5w = -21

Solving for variable 'w'.

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

Add '-9' to each side of the equation.
9 + -9 + -5w = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -5w = -21 + -9
-5w = -21 + -9

Combine like terms: -21 + -9 = -30
-5w = -30

Divide each side by '-5'.
w = 6

Simplifying
w = 6

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