-7b+7b=-4

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Solution for -7b+7b=-4 equation: 


Simplifying
-7b + 7b = -4

Combine like terms: -7b + 7b = 0
0 = -4

Solving
0 = -4

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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