(x*x)+3x=(x*x)+x

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Solution for (x*x)+3x=(x*x)+x equation: 


Simplifying
(x * x) + 3x = (x * x) + x

Multiply x * x
(x2) + 3x = (x * x) + x
x2 + 3x = (x * x) + x

Reorder the terms:
3x + x2 = (x * x) + x

Multiply x * x
3x + x2 = (x2) + x
3x + x2 = x2 + x

Reorder the terms:
3x + x2 = x + x2

Add '-1x2' to each side of the equation.
3x + x2 + -1x2 = x + x2 + -1x2

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

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

Solving
3x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
3x + -1x = x + -1x

Combine like terms: 3x + -1x = 2x
2x = x + -1x

Combine like terms: x + -1x = 0
2x = 0

Divide each side by '2'.
x = 0

Simplifying
x = 0

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