6=-9a

Solution for 6=-9a equation:

Simplifying
6 = -9a

Solving
6 = -9a

Solving for variable 'a'.

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

Add '9a' to each side of the equation.
6 + 9a = -9a + 9a

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

Add '-6' to each side of the equation.
6 + -6 + 9a = 0 + -6

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

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

Divide each side by '9'.
a = -0.6666666667

Simplifying
a = -0.6666666667