one more......sorry

[thegersters]

I wish I knew how to do these so I could help my sister myself.

1/(3y2 - 10y + 3) = 6y/(9y2 - 1) - 2/(3y - 1). A solution for this equation is y =

a. -4
b. -1
c. 0
d. 1
e. 2
f. 3
g. 4
h. 5
i. 6
j. none of these

 

[stapel]

A simplistic method would be to plug the provided numbers in for "y", and see which one works.

A longer method (but one that will work when you aren't given the answers) would be to factor the denominators, getting (3y - 1)(y - 3), (3y - 1)(3y + 1), and (3y - 1), and then multiply through by the common denominator of (3y - 1)(y - 3)(3y + 1). Then solve the resulting equation for the value(s) of y.

Eliz.