13=7-w

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Solution for 13=7-w equation:


Simplifying
13 = 7 + -1w

Solving
13 = 7 + -1w

Solving for variable 'w'.

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

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

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

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

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

Combine like terms: 7 + -13 = -6
w = -6

Simplifying
w = -6

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