Posted by N/A on Tuesday, January 1, 2013 at 8:15pm.
you can pick any value for x or y and then figure the other one out:
x=10:
3(10)+5y=39.89
30+5y=39.89
5y=9.89
y = 1.978
y=-20:
3x+5(-20) = 39.89
3x-100=39.89
3x=139.89
x=46.63
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