9a-12a+6=-1

Solution for 9a-12a+6=-1 equation:

Simplifying
9a + -12a + 6 = -1

Reorder the terms:
6 + 9a + -12a = -1

Combine like terms: 9a + -12a = -3a
6 + -3a = -1

Solving
6 + -3a = -1

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 + -3a = -1 + -6

Combine like terms: 6 + -6 = 0
0 + -3a = -1 + -6
-3a = -1 + -6

Combine like terms: -1 + -6 = -7
-3a = -7

Divide each side by '-3'.
a = 2.333333333

Simplifying
a = 2.333333333