3a-12=15+6a

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Solution for 3a-12=15+6a equation:


Simplifying
3a + -12 = 15 + 6a

Reorder the terms:
-12 + 3a = 15 + 6a

Solving
-12 + 3a = 15 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
-12 + 3a + -6a = 15 + 6a + -6a

Combine like terms: 3a + -6a = -3a
-12 + -3a = 15 + 6a + -6a

Combine like terms: 6a + -6a = 0
-12 + -3a = 15 + 0
-12 + -3a = 15

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

Combine like terms: -12 + 12 = 0
0 + -3a = 15 + 12
-3a = 15 + 12

Combine like terms: 15 + 12 = 27
-3a = 27

Divide each side by '-3'.
a = -9

Simplifying
a = -9

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