[tex] \left \{ {{x-y=5} \atop { \sqrt[]{x} - \sqrt[]{y} =1}} ight. [/tex]

ОДЗx≥0y≥0√x=1+√yx-y=5(1+√y)²-y=5√x=1+√y1+2√y+y-y=5√x=1+√y2√y=4√x=1+√y√y=2√x=1+√yy=4√x=1+2y=4√x=3y=4x=9