-3a-9+6-3a=

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


Simplifying
-3a + -9 + 6 + -3a = 0

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

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

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

Solving
-3 + -6a = 0

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + -6a = 0 + 3

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

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

Divide each side by '-6'.
a = -0.5

Simplifying
a = -0.5

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