=-x-x^2+x^2+3

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


Simplifying
0 = -1x + -1x2 + x2 + 3

Reorder the terms:
0 = 3 + -1x + -1x2 + x2

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

Solving
0 = 3 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
0 + x = 3 + -1x + x
Remove the zero:
x = 3 + -1x + x

Combine like terms: -1x + x = 0
x = 3 + 0
x = 3

Simplifying
x = 3

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