1a-3a=-2a

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Solution for 1a-3a=-2a equation: 


Simplifying
1a + -3a = -2a

Combine like terms: 1a + -3a = -2a
-2a = -2a

Add '2a' to each side of the equation.
-2a + 2a = -2a + 2a

Combine like terms: -2a + 2a = 0
0 = -2a + 2a

Combine like terms: -2a + 2a = 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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