49x^2-1=99

Solution for 49x^2-1=99 equation:

Simplifying
49x2 + -1 = 99

Reorder the terms:
-1 + 49x2 = 99

Solving
-1 + 49x2 = 99

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 49x2 = 99 + 1

Combine like terms: -1 + 1 = 0
0 + 49x2 = 99 + 1
49x2 = 99 + 1

Combine like terms: 99 + 1 = 100
49x2 = 100

Divide each side by '49'.
x2 = 2.040816327

Simplifying
x2 = 2.040816327

Take the square root of each side:
x = {-1.428571429, 1.428571429}