6-(3+x)=12

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

Simplifying
6 + -1(3 + x) = 12
6 + (3 * -1 + x * -1) = 12
6 + (-3 + -1x) = 12

Combine like terms: 6 + -3 = 3
3 + -1x = 12

Solving
3 + -1x = 12

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -1x = 12 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 12 + -3
-1x = 12 + -3

Combine like terms: 12 + -3 = 9
-1x = 9

Divide each side by '-1'.
x = -9

Simplifying
x = -9