Question

нужно срочно решить!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

$left { {{x+y=10,1} atop {lgx-lgy=2=2}} right. ; left { {{x+y=10,1} atop {lgfrac{x}{y}=lg10^2}} ; left { {{x+y=10,1} atop {frac{x}{y}=100}} right. right. ; left { {{100y+y=10,1} atop {x=100y}} right. \\ left { {{101y=10,1} atop {x=100y}} right. ; left { {{y=0,1} atop {x=10}} right.$