SOLUTION: 3y-9/5=3

Algebra ->  Equations -> SOLUTION: 3y-9/5=3      Log On


   



Question 68702: 3y-9/5=3
Found 2 solutions by checkley71, rmromero:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
3Y-9/5=3
3Y=3+9/5
3Y=(15+9)/5
3Y=24/5
5*3Y=24
15Y=24
Y=24/15
Y=8/5
PROOF
3*8/5-9/5=3
24/5-9/5=3
(24-9)/5=3
15/5=3
3=3

Answer by rmromero(383) About Me  (Show Source):
You can put this solution on YOUR website!
Add 9/5 both sides
3y+-+9%2F5+%2B+9%2F5+=+3+%2B+9%2F5

3y+=+15%2F5+%2B+9%2F5

3y+=+24%2F5

Divide both sides by 3
3y%2F3+=+24%2F5+%2A+1%2F3
highlight+%28y+=+8%2F5%29
Checking
3y-9%2F5=3 , y+=+8%2F5

3%288%2F5%29+-+9%2F5+=+3

24%2F5+-+9%2F5+=+3

15%2F5+=+3
3 = 3 ---------> True