4a+6+4a=-18

Solution for 4a+6+4a=-18 equation:

Simplifying
4a + 6 + 4a = -18

Reorder the terms:
6 + 4a + 4a = -18

Combine like terms: 4a + 4a = 8a
6 + 8a = -18

Solving
6 + 8a = -18

Solving for variable 'a'.

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

Add '-6' to each side of the equation.
6 + -6 + 8a = -18 + -6

Combine like terms: 6 + -6 = 0
0 + 8a = -18 + -6
8a = -18 + -6

Combine like terms: -18 + -6 = -24
8a = -24

Divide each side by '8'.
a = -3

Simplifying
a = -3