12x-6+(-9)(x-3)=

Solution for 12x-6+(-9)(x-3)= equation:

Simplifying
12x + -6 + (-9)(x + -3) = 0

Reorder the terms:
12x + -6 + -9(-3 + x) = 0
12x + -6 + (-3 * -9 + x * -9) = 0
12x + -6 + (27 + -9x) = 0

Reorder the terms:
-6 + 27 + 12x + -9x = 0

Combine like terms: -6 + 27 = 21
21 + 12x + -9x = 0

Combine like terms: 12x + -9x = 3x
21 + 3x = 0

Solving
21 + 3x = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 3x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 3x = 0 + -21
3x = 0 + -21

Combine like terms: 0 + -21 = -21
3x = -21

Divide each side by '3'.
x = -7

Simplifying
x = -7