За решение 30 баллов (3х+5у=11 (2х-3у=11 это система уравнений

[latex] left { {{3x+5y=11|cdot 2} atop {2x-3y=11|cdot (-3)}} ight. +; left { {{3x+5y=11} atop {19y=-11}} ight. ; left { {{3x-frac{55}{19}=11} atop {y=-frac{11}{19}} ight. ; left { {{3x=frac{264}{19}=13frac{17}{19}} atop {x=2}} ight. \\ left { {{x=frac{264}{57}=4frac{36}{57}} atop {y=-frac{11}{19}}} ight. [/latex]