6a+9-3a=

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Solution for 6a+9-3a= equation: 


Simplifying
6a + 9 + -3a = 0

Reorder the terms:
9 + 6a + -3a = 0

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

Solving
9 + 3a = 0

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + 3a = 0 + -9

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

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

Divide each side by '3'.
a = -3

Simplifying
a = -3

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