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3x-7y=17   when x=-3,0,3
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3x-7y=17   when x=-3,0,3

User Jasneet Dua
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3x-7y=17\\-7y=17-3x\ \ \ \ |:(-7)\\y=-(17)/(7)+(3)/(7)x\\\\When\ x=-3:\\y=-(17)/(7)+(3)/(7)\cdot(-3)\\y=-(17)/(7)-(9)/(7)\\y=-(26)/(7)=-3(5)/(7)\\\\When\ x=0:\\y=-(17)/(7)+(3)/(7)\cdot0\\y=-(17)/(7)=-2(3)/(7)\\\\When\ x=3:\\y=-(17)/(7)+(3)/(7)\cdot3\\y=-(17)/(7)+(9)/(7)\\y=-(8)/(7)=-1(1)/(7)
User Gauging
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