5a+2a=7a

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Solution for 5a+2a=7a equation: 


Simplifying
5a + 2a = 7a

Combine like terms: 5a + 2a = 7a
7a = 7a

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

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

Combine like terms: 7a + -7a = 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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