-3a+6+4a=15-22

Solution for -3a+6+4a=15-22 equation:

Simplifying
-3a + 6 + 4a = 15 + -22

Reorder the terms:
6 + -3a + 4a = 15 + -22

Combine like terms: -3a + 4a = 1a
6 + 1a = 15 + -22

Combine like terms: 15 + -22 = -7
6 + 1a = -7

Solving
6 + 1a = -7

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 + 1a = -7 + -6

Combine like terms: 6 + -6 = 0
0 + 1a = -7 + -6
1a = -7 + -6

Combine like terms: -7 + -6 = -13
1a = -13

Divide each side by '1'.
a = -13

Simplifying
a = -13