12a-3=3a+15

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Solution for 12a-3=3a+15 equation:


Simplifying
12a + -3 = 3a + 15

Reorder the terms:
-3 + 12a = 3a + 15

Reorder the terms:
-3 + 12a = 15 + 3a

Solving
-3 + 12a = 15 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-3 + 12a + -3a = 15 + 3a + -3a

Combine like terms: 12a + -3a = 9a
-3 + 9a = 15 + 3a + -3a

Combine like terms: 3a + -3a = 0
-3 + 9a = 15 + 0
-3 + 9a = 15

Add '3' to each side of the equation.
-3 + 3 + 9a = 15 + 3

Combine like terms: -3 + 3 = 0
0 + 9a = 15 + 3
9a = 15 + 3

Combine like terms: 15 + 3 = 18
9a = 18

Divide each side by '9'.
a = 2

Simplifying
a = 2

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