13-w=-7

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Solution for 13-w=-7 equation: 


Simplifying
13 + -1w = -7

Solving
13 + -1w = -7

Solving for variable 'w'.

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

Add '-13' to each side of the equation.
13 + -13 + -1w = -7 + -13

Combine like terms: 13 + -13 = 0
0 + -1w = -7 + -13
-1w = -7 + -13

Combine like terms: -7 + -13 = -20
-1w = -20

Divide each side by '-1'.
w = 20

Simplifying
w = 20

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