3a-a=3a

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Solution for 3a-a=3a equation: 


Simplifying
3a + -1a = 3a

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

Solving
2a = 3a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-3a' to each side of the equation.
2a + -3a = 3a + -3a

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

Combine like terms: 3a + -3a = 0
-1a = 0

Divide each side by '-1'.
a = 0

Simplifying
a = 0

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