x^2+2x+4=x+20+x

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Solution for x^2+2x+4=x+20+x equation: 


Simplifying
x2 + 2x + 4 = x + 20 + x

Reorder the terms:
4 + 2x + x2 = x + 20 + x

Reorder the terms:
4 + 2x + x2 = 20 + x + x

Combine like terms: x + x = 2x
4 + 2x + x2 = 20 + 2x

Add '-2x' to each side of the equation.
4 + 2x + -2x + x2 = 20 + 2x + -2x

Combine like terms: 2x + -2x = 0
4 + 0 + x2 = 20 + 2x + -2x
4 + x2 = 20 + 2x + -2x

Combine like terms: 2x + -2x = 0
4 + x2 = 20 + 0
4 + x2 = 20

Solving
4 + x2 = 20

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + x2 = 20 + -4

Combine like terms: 4 + -4 = 0
0 + x2 = 20 + -4
x2 = 20 + -4

Combine like terms: 20 + -4 = 16
x2 = 16

Simplifying
x2 = 16

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

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