23=x^2+7

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Solution for 23=x^2+7 equation:


Simplifying
23 = x2 + 7

Reorder the terms:
23 = 7 + x2

Solving
23 = 7 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
23 + -1x2 = 7 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
23 + -1x2 = 7 + 0
23 + -1x2 = 7

Add '-23' to each side of the equation.
23 + -23 + -1x2 = 7 + -23

Combine like terms: 23 + -23 = 0
0 + -1x2 = 7 + -23
-1x2 = 7 + -23

Combine like terms: 7 + -23 = -16
-1x2 = -16

Divide each side by '-1'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

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