a+4=a

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Solution for a+4=a equation: 


Simplifying
a + 4 = a

Reorder the terms:
4 + a = a

Add '-1a' to each side of the equation.
4 + a + -1a = a + -1a

Combine like terms: a + -1a = 0
4 + 0 = a + -1a
4 = a + -1a

Combine like terms: a + -1a = 0
4 = 0

Solving
4 = 0

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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