5x^2-105=20

Solution for 5x^2-105=20 equation:

Simplifying
5x2 + -105 = 20

Reorder the terms:
-105 + 5x2 = 20

Solving
-105 + 5x2 = 20

Solving for variable 'x'.

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

Add '105' to each side of the equation.
-105 + 105 + 5x2 = 20 + 105

Combine like terms: -105 + 105 = 0
0 + 5x2 = 20 + 105
5x2 = 20 + 105

Combine like terms: 20 + 105 = 125
5x2 = 125

Divide each side by '5'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}