90x^2-19=90

Solution for 90x^2-19=90 equation:

Simplifying
90x2 + -19 = 90

Reorder the terms:
-19 + 90x2 = 90

Solving
-19 + 90x2 = 90

Solving for variable 'x'.

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

Add '19' to each side of the equation.
-19 + 19 + 90x2 = 90 + 19

Combine like terms: -19 + 19 = 0
0 + 90x2 = 90 + 19
90x2 = 90 + 19

Combine like terms: 90 + 19 = 109
90x2 = 109

Divide each side by '90'.
x2 = 1.211111111

Simplifying
x2 = 1.211111111

Take the square root of each side:
x = {-1.100504935, 1.100504935}