4a-12=3a

Solution for 4a-12=3a equation:

Simplifying
4a + -12 = 3a

Reorder the terms:
-12 + 4a = 3a

Solving
-12 + 4a = 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.
-12 + 4a + -3a = 3a + -3a

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

Combine like terms: 3a + -3a = 0
-12 + 1a = 0

Add '12' to each side of the equation.
-12 + 12 + 1a = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 1a = 0 + 12
1a = 0 + 12

Combine like terms: 0 + 12 = 12
1a = 12

Divide each side by '1'.
a = 12

Simplifying
a = 12