3x-7-3x=7

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Solution for 3x-7-3x=7 equation: 


Simplifying
3x + -7 + -3x = 7

Reorder the terms:
-7 + 3x + -3x = 7

Combine like terms: 3x + -3x = 0
-7 + 0 = 7
-7 = 7

Solving
-7 = 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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