x^2+x=x^2-4

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Solution for x^2+x=x^2-4 equation: 


Simplifying
x2 + x = x2 + -4

Reorder the terms:
x + x2 = x2 + -4

Reorder the terms:
x + x2 = -4 + x2

Add '-1x2' to each side of the equation.
x + x2 + -1x2 = -4 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
x + 0 = -4 + x2 + -1x2
x = -4 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
x = -4 + 0
x = -4

Solving
x = -4

Solving for variable 'x'.

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

Simplifying
x = -4

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