7-(-6.5)=x

Solution for 7-(-6.5)=x equation:

Simplifying
7 + -1(-6.5) = x

Multiply -1 * -6.5
7 + 6.5 = x

Combine like terms: 7 + 6.5 = 13.5
13.5 = x

Solving
13.5 = 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.
13.5 + -1x = x + -1x

Combine like terms: x + -1x = 0
13.5 + -1x = 0

Add '-13.5' to each side of the equation.
13.5 + -13.5 + -1x = 0 + -13.5

Combine like terms: 13.5 + -13.5 = 0.0
0.0 + -1x = 0 + -13.5
-1x = 0 + -13.5

Combine like terms: 0 + -13.5 = -13.5
-1x = -13.5

Divide each side by '-1'.
x = 13.5

Simplifying
x = 13.5