8-5w=-7

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Solution for 8-5w=-7 equation: 


Simplifying
8 + -5w = -7

Solving
8 + -5w = -7

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 + -5w = -7 + -8

Combine like terms: 8 + -8 = 0
0 + -5w = -7 + -8
-5w = -7 + -8

Combine like terms: -7 + -8 = -15
-5w = -15

Divide each side by '-5'.
w = 3

Simplifying
w = 3

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