7-a=6-a

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Solution for 7-a=6-a equation: 


Simplifying
7 + -1a = 6 + -1a

Add 'a' to each side of the equation.
7 + -1a + a = 6 + -1a + a

Combine like terms: -1a + a = 0
7 + 0 = 6 + -1a + a
7 = 6 + -1a + a

Combine like terms: -1a + a = 0
7 = 6 + 0
7 = 6

Solving
7 = 6

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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