23=2x^2-18+7

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Solution for 23=2x^2-18+7 equation:


Simplifying
23 = 2x2 + -18 + 7

Reorder the terms:
23 = -18 + 7 + 2x2

Combine like terms: -18 + 7 = -11
23 = -11 + 2x2

Solving
23 = -11 + 2x2

Solving for variable 'x'.

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

Add '-2x2' to each side of the equation.
23 + -2x2 = -11 + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
23 + -2x2 = -11 + 0
23 + -2x2 = -11

Add '-23' to each side of the equation.
23 + -23 + -2x2 = -11 + -23

Combine like terms: 23 + -23 = 0
0 + -2x2 = -11 + -23
-2x2 = -11 + -23

Combine like terms: -11 + -23 = -34
-2x2 = -34

Divide each side by '-2'.
x2 = 17

Simplifying
x2 = 17

Take the square root of each side:
x = {-4.123105626, 4.123105626}

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