7x^2-5=23

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Solution for 7x^2-5=23 equation: 


Simplifying
7x2 + -5 = 23

Reorder the terms:
-5 + 7x2 = 23

Solving
-5 + 7x2 = 23

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 7x2 = 23 + 5

Combine like terms: -5 + 5 = 0
0 + 7x2 = 23 + 5
7x2 = 23 + 5

Combine like terms: 23 + 5 = 28
7x2 = 28

Divide each side by '7'.
x2 = 4

Simplifying
x2 = 4

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

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