5x^2-7=13

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Solution for 5x^2-7=13 equation: 


Simplifying
5x2 + -7 = 13

Reorder the terms:
-7 + 5x2 = 13

Solving
-7 + 5x2 = 13

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 5x2 = 13 + 7

Combine like terms: -7 + 7 = 0
0 + 5x2 = 13 + 7
5x2 = 13 + 7

Combine like terms: 13 + 7 = 20
5x2 = 20

Divide each side by '5'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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