7-12=x-6+9

Solution for 7-12=x-6+9 equation:

Simplifying
7 + -12 = x + -6 + 9

Combine like terms: 7 + -12 = -5
-5 = x + -6 + 9

Reorder the terms:
-5 = -6 + 9 + x

Combine like terms: -6 + 9 = 3
-5 = 3 + x

Solving
-5 = 3 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-5 + -1x = 3 + x + -1x

Combine like terms: x + -1x = 0
-5 + -1x = 3 + 0
-5 + -1x = 3

Add '5' to each side of the equation.
-5 + 5 + -1x = 3 + 5

Combine like terms: -5 + 5 = 0
0 + -1x = 3 + 5
-1x = 3 + 5

Combine like terms: 3 + 5 = 8
-1x = 8

Divide each side by '-1'.
x = -8

Simplifying
x = -8