9+(-3a)+4a=

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Solution for 9+(-3a)+4a= equation: 


Simplifying
9 + (-3a) + 4a = 0

Combine like terms: (-3a) + 4a = 1a
9 + 1a = 0

Solving
9 + 1a = 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 + 1a = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 1a = 0 + -9
1a = 0 + -9

Combine like terms: 0 + -9 = -9
1a = -9

Divide each side by '1'.
a = -9

Simplifying
a = -9

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