3a-3=18-2a-6

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Solution for 3a-3=18-2a-6 equation:


Simplifying
3a + -3 = 18 + -2a + -6

Reorder the terms:
-3 + 3a = 18 + -2a + -6

Reorder the terms:
-3 + 3a = 18 + -6 + -2a

Combine like terms: 18 + -6 = 12
-3 + 3a = 12 + -2a

Solving
-3 + 3a = 12 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
-3 + 3a + 2a = 12 + -2a + 2a

Combine like terms: 3a + 2a = 5a
-3 + 5a = 12 + -2a + 2a

Combine like terms: -2a + 2a = 0
-3 + 5a = 12 + 0
-3 + 5a = 12

Add '3' to each side of the equation.
-3 + 3 + 5a = 12 + 3

Combine like terms: -3 + 3 = 0
0 + 5a = 12 + 3
5a = 12 + 3

Combine like terms: 12 + 3 = 15
5a = 15

Divide each side by '5'.
a = 3

Simplifying
a = 3

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