`{(`1/x+2y` =1),(`1/y+2x` =1):}` Giúp mik giải HPT này vs :(((
2 câu trả lời
`{(`1/x+2y` =1),(`1/y+2x` =1):}`
`<=>` `{(x+2y=1),(y+2x=1):}`
`<=>` `{(x=1-2y),(y+2(1-2y)=1):}`
`<=>` `{(x=1-2y),(y+2-4y=1):}`
`<=>` `{(x=1-2y),(-3y+2=1):}`
`<=>` `{(x=1-`2/3`),(y=`1/3`),(c):}`
`<=>` `{(x=`1/3`),(`1/3`):}`
$#ShuLinh$