.75-12.25=x

Solution for .75-12.25=x equation:

Simplifying
0.75 + -12.25 = x

Combine like terms: 0.75 + -12.25 = -11.5
-11.5 = x

Solving
-11.5 = 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.
-11.5 + -1x = x + -1x

Combine like terms: x + -1x = 0
-11.5 + -1x = 0

Add '11.5' to each side of the equation.
-11.5 + 11.5 + -1x = 0 + 11.5

Combine like terms: -11.5 + 11.5 = 0.0
0.0 + -1x = 0 + 11.5
-1x = 0 + 11.5

Combine like terms: 0 + 11.5 = 11.5
-1x = 11.5

Divide each side by '-1'.
x = -11.5

Simplifying
x = -11.5