3a+5a-a=8a

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Solution for 3a+5a-a=8a equation: 


Simplifying
3a + 5a + -1a = 8a

Combine like terms: 3a + 5a = 8a
8a + -1a = 8a

Combine like terms: 8a + -1a = 7a
7a = 8a

Solving
7a = 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
7a + -8a = 8a + -8a

Combine like terms: 7a + -8a = -1a
-1a = 8a + -8a

Combine like terms: 8a + -8a = 0
-1a = 0

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

Simplifying
a = 0

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