SOLUTION: solve the proportion 3x 4 -- = -- x + 1 x

SOLUTION: solve the proportion 3x 4 -- = -- x + 1 x

Algebra.Com

Question 148968: solve the proportion 3x 4
-- = --
x + 1 x
Answer by mangopeeler07(462) (Show Source): You can put this solution on YOUR website!
3x/x+1=4/x

Cross multiply:
3x^2=4x+4

Set equal to zero
3x^2-4x-4=0

Factor
(3x+2)(x-2)=0

Solve for x
x=-2/3,2
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