7-(-12)=x

Solution for 7-(-12)=x equation:

Simplifying
7 + -1(-12) = x

Multiply -1 * -12
7 + 12 = x

Combine like terms: 7 + 12 = 19
19 = x

Solving
19 = 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.
19 + -1x = x + -1x

Combine like terms: x + -1x = 0
19 + -1x = 0

Add '-19' to each side of the equation.
19 + -19 + -1x = 0 + -19

Combine like terms: 19 + -19 = 0
0 + -1x = 0 + -19
-1x = 0 + -19

Combine like terms: 0 + -19 = -19
-1x = -19

Divide each side by '-1'.
x = 19

Simplifying
x = 19