SOLUTION: I am having trouble solving this problem: 5-s/7-s=2/s-7 Any ideas?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I am having trouble solving this problem: 5-s/7-s=2/s-7 Any ideas?       Log On


   

Question 481697: I am having trouble solving this problem:
5-s/7-s=2/s-7
Any ideas?
Found 2 solutions by jim_thompson5910, stanbon:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: if you have A%2FB=C%2FD, you can cross multiply to get AD=BC

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I am having trouble solving this problem:
5-s/7-s=2/s-7
----
Remember: -(s-7) = 7-s
======
Multiply both sides by s-7 to get:
-(5-s) = 2
-5+s = 2
s = 7
---
But s cannot be 7 as that would cause 2/(s-7) to be undefined.
=======
Conclusion: No solution
==========================
Cheers,
Stan H.