-7-(-13)=y

Solution for -7-(-13)=y equation:

Simplifying
-7 + -1(-13) = y

Multiply -1 * -13
-7 + 13 = y

Combine like terms: -7 + 13 = 6
6 = y

Solving
6 = y

Solving for variable 'y'.

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

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

Combine like terms: y + -1y = 0
6 + -1y = 0

Add '-6' to each side of the equation.
6 + -6 + -1y = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -1y = 0 + -6
-1y = 0 + -6

Combine like terms: 0 + -6 = -6
-1y = -6

Divide each side by '-1'.
y = 6

Simplifying
y = 6