9a-3a-18=-6

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Solution for 9a-3a-18=-6 equation:


Simplifying
9a + -3a + -18 = -6

Reorder the terms:
-18 + 9a + -3a = -6

Combine like terms: 9a + -3a = 6a
-18 + 6a = -6

Solving
-18 + 6a = -6

Solving for variable 'a'.

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

Add '18' to each side of the equation.
-18 + 18 + 6a = -6 + 18

Combine like terms: -18 + 18 = 0
0 + 6a = -6 + 18
6a = -6 + 18

Combine like terms: -6 + 18 = 12
6a = 12

Divide each side by '6'.
a = 2

Simplifying
a = 2

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