3x+4x=7x

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


Simplifying
3x + 4x = 7x

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

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

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

Combine like terms: 7x + -7x = 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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