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sumanthy Group TitleBest ResponseYou've already chosen the best response.1
By substituion: put y=2x10 in xy=7 x(2x10)=7 x2x+10=7 x=710 x=3 x=3 Put x=3 in y=2x10 y=2*310 y=4
 2 years ago

sumanthy Group TitleBest ResponseYou've already chosen the best response.1
Graphically you can draw the lines and find the point of intersection.
 2 years ago

sumanthy Group TitleBest ResponseYou've already chosen the best response.1
There is one more method called Elimination :)
 2 years ago

shahzadjalbani Group TitleBest ResponseYou've already chosen the best response.1
y=2x10 can be changed into 2xy=10 now subtract equation 2 from 1 2xy=10 xy=7  x=3 put value of x in first equation you will get value of y.
 2 years ago

sumanthy Group TitleBest ResponseYou've already chosen the best response.1
shahzadjalbani gave elimination method :)
 2 years ago

jenni_fowler Group TitleBest ResponseYou've already chosen the best response.0
ah i like that way better i think
 2 years ago
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