7x^2-22=99

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Solution for 7x^2-22=99 equation:


Simplifying
7x2 + -22 = 99

Reorder the terms:
-22 + 7x2 = 99

Solving
-22 + 7x2 = 99

Solving for variable 'x'.

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

Add '22' to each side of the equation.
-22 + 22 + 7x2 = 99 + 22

Combine like terms: -22 + 22 = 0
0 + 7x2 = 99 + 22
7x2 = 99 + 22

Combine like terms: 99 + 22 = 121
7x2 = 121

Divide each side by '7'.
x2 = 17.28571429

Simplifying
x2 = 17.28571429

Take the square root of each side:
x = {-4.157609204, 4.157609204}

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