-20=8-7w

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Solution for -20=8-7w equation:


Simplifying
-20 = 8 + -7w

Solving
-20 = 8 + -7w

Solving for variable 'w'.

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

Add '7w' to each side of the equation.
-20 + 7w = 8 + -7w + 7w

Combine like terms: -7w + 7w = 0
-20 + 7w = 8 + 0
-20 + 7w = 8

Add '20' to each side of the equation.
-20 + 20 + 7w = 8 + 20

Combine like terms: -20 + 20 = 0
0 + 7w = 8 + 20
7w = 8 + 20

Combine like terms: 8 + 20 = 28
7w = 28

Divide each side by '7'.
w = 4

Simplifying
w = 4

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