(X+6)(x-1)=x(x+3)

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Solution for (X+6)(x-1)=x(x+3) equation: 



(X+6)(X-1)=X(X+3)

We move all terms to the left:

(X+6)(X-1)-(X(X+3))=0

We multiply parentheses ..

(+X^2-1X+6X-6)-(X(X+3))=0



We calculate terms in parentheses: -(X(X+3)), so:

X(X+3)

We multiply parentheses

X^2+3X

Back to the equation:

-(X^2+3X)



We get rid of parentheses

X^2-X^2-1X+6X-3X-6=0

We add all the numbers together, and all the variables

2X-6=0

We move all terms containing X to the left, all other terms to the right

2X=6

X=6/2

X=3

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