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kryton1212
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The xcoordinate of the point of intersection of the straight lines 2x+ay7=0 and axy5=0 is 2. If a is an integer, find the value of a.
 one year ago
 one year ago
kryton1212 Group Title
The xcoordinate of the point of intersection of the straight lines 2x+ay7=0 and axy5=0 is 2. If a is an integer, find the value of a.
 one year ago
 one year ago

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RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
2x+ay7=0 (1) axy5=0 (2) From the second equation: y = ax5 (3) Sub. (3) into (1) 2x+a(ax5)7=0 (4) Sub x=2 into (4), then solve a I think it should work.
 one year ago

kryton1212 Group TitleBest ResponseYou've already chosen the best response.0
is it 3?
 one year ago

kryton1212 Group TitleBest ResponseYou've already chosen the best response.0
thank you I got it:)
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
I think so!
 one year ago
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