SOLUTION: 3x-y=4
xy=7
Algebra.Com
Question 31894: 3x-y=4
xy=7
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
3X-Y=4 & XY=7
Y=3X-4 OR X(3X-4)=7 OR 3X~2-4X-7=0 OR (3X-7)(X+1)=0 OR
3X-7=0 OR 3X=7 OR X=7/3 AND
X+1=0 OR X=-1
SOLVING FOR Y WE GET
3(7/3)-Y=4 OR 21/3-Y=4 OR 7-Y=4 OR 7-4=Y OR Y=3 X=7/3 & Y=-1 ALSO
3(-1)-Y=4 OR -3-Y=4 OR Y=-7 & X=-1 & Y=-7
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