-7u=-7u+5

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Solution for -7u=-7u+5 equation: 


Simplifying
-7u = -7u + 5

Reorder the terms:
-7u = 5 + -7u

Add '7u' to each side of the equation.
-7u + 7u = 5 + -7u + 7u

Combine like terms: -7u + 7u = 0
0 = 5 + -7u + 7u

Combine like terms: -7u + 7u = 0
0 = 5 + 0
0 = 5

Solving
0 = 5

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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