49x^2-91+42=0

Solution for 49x^2-91+42=0 equation:

Simplifying
49x2 + -91 + 42 = 0

Reorder the terms:
-91 + 42 + 49x2 = 0

Combine like terms: -91 + 42 = -49
-49 + 49x2 = 0

Solving
-49 + 49x2 = 0

Solving for variable 'x'.

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

Add '49' to each side of the equation.
-49 + 49 + 49x2 = 0 + 49

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

Combine like terms: 0 + 49 = 49
49x2 = 49

Divide each side by '49'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}