-7=-9+w

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Solution for -7=-9+w equation:


Simplifying
-7 = -9 + w

Solving
-7 = -9 + 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 = -9 + w + -1w

Combine like terms: w + -1w = 0
-7 + -1w = -9 + 0
-7 + -1w = -9

Add '7' to each side of the equation.
-7 + 7 + -1w = -9 + 7

Combine like terms: -7 + 7 = 0
0 + -1w = -9 + 7
-1w = -9 + 7

Combine like terms: -9 + 7 = -2
-1w = -2

Divide each side by '-1'.
w = 2

Simplifying
w = 2

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