4a+12=-a+3

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

Simplifying
4a + 12 = -1a + 3

Reorder the terms:
12 + 4a = -1a + 3

Reorder the terms:
12 + 4a = 3 + -1a

Solving
12 + 4a = 3 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
12 + 4a + a = 3 + -1a + a

Combine like terms: 4a + a = 5a
12 + 5a = 3 + -1a + a

Combine like terms: -1a + a = 0
12 + 5a = 3 + 0
12 + 5a = 3

Add '-12' to each side of the equation.
12 + -12 + 5a = 3 + -12

Combine like terms: 12 + -12 = 0
0 + 5a = 3 + -12
5a = 3 + -12

Combine like terms: 3 + -12 = -9
5a = -9

Divide each side by '5'.
a = -1.8

Simplifying
a = -1.8