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

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


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

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

Reorder the terms:
3x + x2 = 3(3 + x)
3x + x2 = (3 * 3 + x * 3)
3x + x2 = (9 + 3x)

Add '-3x' to each side of the equation.
3x + -3x + x2 = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
0 + x2 = 9 + 3x + -3x
x2 = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
x2 = 9 + 0
x2 = 9

Solving
x2 = 9

Solving for variable 'x'.

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

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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