-20=3(g-2)-9g

Solution for -20=3(g-2)-9g equation:

Simplifying
-20 = 3(g + -2) + -9g

Reorder the terms:
-20 = 3(-2 + g) + -9g
-20 = (-2 * 3 + g * 3) + -9g
-20 = (-6 + 3g) + -9g

Combine like terms: 3g + -9g = -6g
-20 = -6 + -6g

Solving
-20 = -6 + -6g

Solving for variable 'g'.

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

Add '6g' to each side of the equation.
-20 + 6g = -6 + -6g + 6g

Combine like terms: -6g + 6g = 0
-20 + 6g = -6 + 0
-20 + 6g = -6

Add '20' to each side of the equation.
-20 + 20 + 6g = -6 + 20

Combine like terms: -20 + 20 = 0
0 + 6g = -6 + 20
6g = -6 + 20

Combine like terms: -6 + 20 = 14
6g = 14

Divide each side by '6'.
g = 2.333333333

Simplifying
g = 2.333333333