4+7.5=3+x

Solution for 4+7.5=3+x equation:

Simplifying
4 + 7.5 = 3 + x

Combine like terms: 4 + 7.5 = 11.5
11.5 = 3 + x

Solving
11.5 = 3 + 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 = 3 + x + -1x

Combine like terms: x + -1x = 0
11.5 + -1x = 3 + 0
11.5 + -1x = 3

Add '-11.5' to each side of the equation.
11.5 + -11.5 + -1x = 3 + -11.5

Combine like terms: 11.5 + -11.5 = 0.0
0.0 + -1x = 3 + -11.5
-1x = 3 + -11.5

Combine like terms: 3 + -11.5 = -8.5
-1x = -8.5

Divide each side by '-1'.
x = 8.5

Simplifying
x = 8.5