-3a+6+5a=-7a-8a

Solution for -3a+6+5a=-7a-8a equation:

Simplifying
-3a + 6 + 5a = -7a + -8a

Reorder the terms:
6 + -3a + 5a = -7a + -8a

Combine like terms: -3a + 5a = 2a
6 + 2a = -7a + -8a

Combine like terms: -7a + -8a = -15a
6 + 2a = -15a

Solving
6 + 2a = -15a

Solving for variable 'a'.

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

Add '15a' to each side of the equation.
6 + 2a + 15a = -15a + 15a

Combine like terms: 2a + 15a = 17a
6 + 17a = -15a + 15a

Combine like terms: -15a + 15a = 0
6 + 17a = 0

Add '-6' to each side of the equation.
6 + -6 + 17a = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 17a = 0 + -6
17a = 0 + -6

Combine like terms: 0 + -6 = -6
17a = -6

Divide each side by '17'.
a = -0.3529411765

Simplifying
a = -0.3529411765