-w+13=9

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Solution for -w+13=9 equation: 


Simplifying
-1w + 13 = 9

Reorder the terms:
13 + -1w = 9

Solving
13 + -1w = 9

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 = 9 + -13

Combine like terms: 13 + -13 = 0
0 + -1w = 9 + -13
-1w = 9 + -13

Combine like terms: 9 + -13 = -4
-1w = -4

Divide each side by '-1'.
w = 4

Simplifying
w = 4

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