2a+6=-9-8

Solution for 2a+6=-9-8 equation:

Simplifying
2a + 6 = -9 + -8

Reorder the terms:
6 + 2a = -9 + -8

Combine like terms: -9 + -8 = -17
6 + 2a = -17

Solving
6 + 2a = -17

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 + 2a = -17 + -6

Combine like terms: 6 + -6 = 0
0 + 2a = -17 + -6
2a = -17 + -6

Combine like terms: -17 + -6 = -23
2a = -23

Divide each side by '2'.
a = -11.5

Simplifying
a = -11.5