9-w=7-w

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Solution for 9-w=7-w equation: 


Simplifying
9 + -1w = 7 + -1w

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

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

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

Solving
9 = 7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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