3a-6+7a=6a+12

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Solution for 3a-6+7a=6a+12 equation:


Simplifying
3a + -6 + 7a = 6a + 12

Reorder the terms:
-6 + 3a + 7a = 6a + 12

Combine like terms: 3a + 7a = 10a
-6 + 10a = 6a + 12

Reorder the terms:
-6 + 10a = 12 + 6a

Solving
-6 + 10a = 12 + 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.
-6 + 10a + -6a = 12 + 6a + -6a

Combine like terms: 10a + -6a = 4a
-6 + 4a = 12 + 6a + -6a

Combine like terms: 6a + -6a = 0
-6 + 4a = 12 + 0
-6 + 4a = 12

Add '6' to each side of the equation.
-6 + 6 + 4a = 12 + 6

Combine like terms: -6 + 6 = 0
0 + 4a = 12 + 6
4a = 12 + 6

Combine like terms: 12 + 6 = 18
4a = 18

Divide each side by '4'.
a = 4.5

Simplifying
a = 4.5

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