20.25+x^2=100

Solution for 20.25+x^2=100 equation:

Simplifying
20.25 + x2 = 100

Solving
20.25 + x2 = 100

Solving for variable 'x'.

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

Add '-20.25' to each side of the equation.
20.25 + -20.25 + x2 = 100 + -20.25

Combine like terms: 20.25 + -20.25 = 0.00
0.00 + x2 = 100 + -20.25
x2 = 100 + -20.25

Combine like terms: 100 + -20.25 = 79.75
x2 = 79.75

Simplifying
x2 = 79.75

Take the square root of each side:
x = {-8.93028555, 8.93028555}