-7a+6+8a=13-22

Solution for -7a+6+8a=13-22 equation:

Simplifying
-7a + 6 + 8a = 13 + -22

Reorder the terms:
6 + -7a + 8a = 13 + -22

Combine like terms: -7a + 8a = 1a
6 + 1a = 13 + -22

Combine like terms: 13 + -22 = -9
6 + 1a = -9

Solving
6 + 1a = -9

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 = -9 + -6

Combine like terms: 6 + -6 = 0
0 + 1a = -9 + -6
1a = -9 + -6

Combine like terms: -9 + -6 = -15
1a = -15

Divide each side by '1'.
a = -15

Simplifying
a = -15