9-3a=-3

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Solution for 9-3a=-3 equation: 


Simplifying
9 + -3a = -3

Solving
9 + -3a = -3

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 = -3 + -9

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

Combine like terms: -3 + -9 = -12
-3a = -12

Divide each side by '-3'.
a = 4

Simplifying
a = 4

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