6=x-3-9

Solution for 6=x-3-9 equation:

Simplifying
6 = x + -3 + -9

Reorder the terms:
6 = -3 + -9 + x

Combine like terms: -3 + -9 = -12
6 = -12 + x

Solving
6 = -12 + 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.
6 + -1x = -12 + x + -1x

Combine like terms: x + -1x = 0
6 + -1x = -12 + 0
6 + -1x = -12

Add '-6' to each side of the equation.
6 + -6 + -1x = -12 + -6

Combine like terms: 6 + -6 = 0
0 + -1x = -12 + -6
-1x = -12 + -6

Combine like terms: -12 + -6 = -18
-1x = -18

Divide each side by '-1'.
x = 18

Simplifying
x = 18