3a-a=4a+12

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Solution for 3a-a=4a+12 equation:


Simplifying
3a + -1a = 4a + 12

Combine like terms: 3a + -1a = 2a
2a = 4a + 12

Reorder the terms:
2a = 12 + 4a

Solving
2a = 12 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
2a + -4a = 12 + 4a + -4a

Combine like terms: 2a + -4a = -2a
-2a = 12 + 4a + -4a

Combine like terms: 4a + -4a = 0
-2a = 12 + 0
-2a = 12

Divide each side by '-2'.
a = -6

Simplifying
a = -6

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