(X-1)(x+7)=(x+1)(x-3

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Solution for (X-1)(x+7)=(x+1)(x-3 equation: 



(X-1)(X+7)=(X+1)(X-3

We move all terms to the left:

(X-1)(X+7)-((X+1)(X-3)=0

We multiply parentheses ..

(+X^2+7X-1X-7)-((X+1)(X-3)=0



We calculate terms in parentheses: -((X+1)(X-3), so:

(X+1)(X-3



We get rid of parentheses

X^2+7X-1X-((X+1)(X-3)-7=0

We multiply parentheses ..

X^2-((+X^2-3X+X-3)-7+7X-1X=0

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