-9=w-13

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Solution for -9=w-13 equation:


Simplifying
-9 = w + -13

Reorder the terms:
-9 = -13 + w

Solving
-9 = -13 + w

Solving for variable 'w'.

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

Add '-1w' to each side of the equation.
-9 + -1w = -13 + w + -1w

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

Add '9' to each side of the equation.
-9 + 9 + -1w = -13 + 9

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

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

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

Simplifying
w = 4

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