3m+4m=7m

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Solution for 3m+4m=7m equation: 


Simplifying
3m + 4m = 7m

Combine like terms: 3m + 4m = 7m
7m = 7m

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

Combine like terms: 7m + -7m = 0
0 = 7m + -7m

Combine like terms: 7m + -7m = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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