7n-7n=140

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Solution for 7n-7n=140 equation: 


Simplifying
7n + -7n = 140

Combine like terms: 7n + -7n = 0
0 = 140

Solving
0 = 140

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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