7x^2-6=57

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Solution for 7x^2-6=57 equation: 


Simplifying
7x2 + -6 = 57

Reorder the terms:
-6 + 7x2 = 57

Solving
-6 + 7x2 = 57

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 7x2 = 57 + 6

Combine like terms: -6 + 6 = 0
0 + 7x2 = 57 + 6
7x2 = 57 + 6

Combine like terms: 57 + 6 = 63
7x2 = 63

Divide each side by '7'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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