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OpenStudy (anonymous):
Multiply top equation by 5 and bottom equation by 7:
35r-25s=80
35r+49s=672
Now subtract the second equation from the first:
-74s=-592
Solving:
s=8
Now input s into either of the original equations and solve for r. I get r=8.
OpenStudy (anonymous):
7r-5s=16 multiply by 7
5r+7s=96 multiply by 5
OpenStudy (anonymous):
so the answer would be 8?
OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
is their more then one solution too?
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OpenStudy (anonymous):
only one solution. r=s=8
OpenStudy (anonymous):
so what is the ordered pair?
OpenStudy (anonymous):
fractions or integers?
OpenStudy (anonymous):
Uh...these are integers. If you want to write the solution as an ordered pair then (r,s)=(8,8)
OpenStudy (anonymous):
There is no natural "order" unless you provide one.
By that I mean it doesn't matter whether u write r first or s first, just so long as u make it clear which is which (in this cvase, it doesn't matter since they are both 8).