Question

5x+ y = 17 and x+ 2y= 7
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Answer 1

Answer:

5x+y= 17 is equation 1

x+2y=7 is equation 2

so multiply equation 2 with 5 then it is 5x+10y=35

equation 2-equation 1

=>8y=18

y=18/8

then

x+2(18/8)=7

x+6=7

x=7-6

x=1

∴x=1,y=18/8