SOLUTION: x/3=4/(x+1)

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Question 227955: x/3=4/(x+1)
Answer by checkley77(12844) About Me  (Show Source):
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x/3=4/(x+1)
x(x+1)=3*4
x^2+x=12
x^2+x-12=0
(x+4)(x-3)=0
x+4=0
x=-4 ans.
x-3=0
x=3 ans.