a=a-2.5

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Solution for a=a-2.5 equation: 


Simplifying
a = a + -2.5

Reorder the terms:
a = -2.5 + a

Add '-1a' to each side of the equation.
a + -1a = -2.5 + a + -1a

Combine like terms: a + -1a = 0
0 = -2.5 + a + -1a

Combine like terms: a + -1a = 0
0 = -2.5 + 0
0 = -2.5

Solving
0 = -2.5

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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