-7=W-3-9

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Solution for -7=W-3-9 equation:


Simplifying
-7 = W + -3 + -9

Reorder the terms:
-7 = -3 + -9 + W

Combine like terms: -3 + -9 = -12
-7 = -12 + W

Solving
-7 = -12 + 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.
-7 + -1W = -12 + W + -1W

Combine like terms: W + -1W = 0
-7 + -1W = -12 + 0
-7 + -1W = -12

Add '7' to each side of the equation.
-7 + 7 + -1W = -12 + 7

Combine like terms: -7 + 7 = 0
0 + -1W = -12 + 7
-1W = -12 + 7

Combine like terms: -12 + 7 = -5
-1W = -5

Divide each side by '-1'.
W = 5

Simplifying
W = 5

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