7x=7x-9

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Solution for 7x=7x-9 equation: 


Simplifying
7x = 7x + -9

Reorder the terms:
7x = -9 + 7x

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

Combine like terms: 7x + -7x = 0
0 = -9 + 7x + -7x

Combine like terms: 7x + -7x = 0
0 = -9 + 0
0 = -9

Solving
0 = -9

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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