90=x^2+76

Solution for 90=x^2+76 equation:

Simplifying
90 = x2 + 76

Reorder the terms:
90 = 76 + x2

Solving
90 = 76 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
90 + -1x2 = 76 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
90 + -1x2 = 76 + 0
90 + -1x2 = 76

Add '-90' to each side of the equation.
90 + -90 + -1x2 = 76 + -90

Combine like terms: 90 + -90 = 0
0 + -1x2 = 76 + -90
-1x2 = 76 + -90

Combine like terms: 76 + -90 = -14
-1x2 = -14

Divide each side by '-1'.
x2 = 14

Simplifying
x2 = 14

Take the square root of each side:
x = {-3.741657387, 3.741657387}