Question Number 191555 by MATHEMATICSAM last updated on 25/Apr/23
$$\mathrm{Solve} \\ $$$$\sqrt{{x}}\:+\:{y}\:=\:\mathrm{11} \\ $$$${x}\:+\:\sqrt{{y}}\:=\:\mathrm{7} \\ $$
Commented by Frix last updated on 26/Apr/23
$$\mathrm{Use}\:\mathrm{your}\:\mathrm{common}\:\mathrm{sense} \\ $$$$\mathrm{2}+\mathrm{9}=\mathrm{11} \\ $$$$\mathrm{4}+\mathrm{3}=\mathrm{7} \\ $$$${x}=\mathrm{4}\wedge{y}=\mathrm{9} \\ $$