-x^2+7=3

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Solution for -x^2+7=3 equation: 


Simplifying
-1x2 + 7 = 3

Reorder the terms:
7 + -1x2 = 3

Solving
7 + -1x2 = 3

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 + -1x2 = 3 + -7

Combine like terms: 7 + -7 = 0
0 + -1x2 = 3 + -7
-1x2 = 3 + -7

Combine like terms: 3 + -7 = -4
-1x2 = -4

Divide each side by '-1'.
x2 = 4

Simplifying
x2 = 4

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

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