SOLUTION: I don't get this one either! 13/(y-1) -3 = 1/(y-1) The 13 is over the y-1 and the 1 is over the y-1. The 3 is on it's own.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I don't get this one either! 13/(y-1) -3 = 1/(y-1) The 13 is over the y-1 and the 1 is over the y-1. The 3 is on it's own.       Log On


   

Question 43470: I don't get this one either!
13/(y-1) -3 = 1/(y-1)
The 13 is over the y-1 and the 1 is over the y-1. The 3 is on it's own.
Answer by aaaaaaaa(138) About Me  (Show Source):
You can put this solution on YOUR website!
When you have fractions, a good way to do it is to put them into the same denominator and solve:
13%2F%28y-1%29+-3+=+1%2F%28y-1%29
13%2F%28y-1%29+-+3%28y-1%29%2F%28y-1%29+=+1%2F%28y-1%29
13%2Fcross%28y-1%29+-+3%28y-1%29%2Fcross%28y-1%29+=+1%2Fcross%28y-1%29
13+-+3%28y-1%29+=+1
13+-+3y+-+3+=+1
-3y+=+-13+-+3+%2B+1
-3y+=+-15
-y+=+-5
y+=+5