20.5-0.25*(52)=x

Solution for 20.5-0.25*(52)=x equation:

Simplifying
20.5 + -0.25(52) = x

Multiply -0.25 * 52
20.5 + -13 = x

Combine like terms: 20.5 + -13 = 7.5
7.5 = x

Solving
7.5 = 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.
7.5 + -1x = x + -1x

Combine like terms: x + -1x = 0
7.5 + -1x = 0

Add '-7.5' to each side of the equation.
7.5 + -7.5 + -1x = 0 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + -1x = 0 + -7.5
-1x = 0 + -7.5

Combine like terms: 0 + -7.5 = -7.5
-1x = -7.5

Divide each side by '-1'.
x = 7.5

Simplifying
x = 7.5