7a-a+3a=

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Solution for 7a-a+3a= equation: 


Simplifying
7a + -1a + 3a = 0

Combine like terms: 7a + -1a = 6a
6a + 3a = 0

Combine like terms: 6a + 3a = 9a
9a = 0

Solving
9a = 0

Solving for variable 'a'.

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

Divide each side by '9'.
a = 0

Simplifying
a = 0

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