3a+6+4a=-36

Solution for 3a+6+4a=-36 equation:

Simplifying
3a + 6 + 4a = -36

Reorder the terms:
6 + 3a + 4a = -36

Combine like terms: 3a + 4a = 7a
6 + 7a = -36

Solving
6 + 7a = -36

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 + 7a = -36 + -6

Combine like terms: 6 + -6 = 0
0 + 7a = -36 + -6
7a = -36 + -6

Combine like terms: -36 + -6 = -42
7a = -42

Divide each side by '7'.
a = -6

Simplifying
a = -6