Question

СРОЧНО ДАЮ 20 БАЛЛОВ​

Answer 1

$\left \{ {{2x-(y-2)=5} \atop {5y+x=2}} \right. \left \{ {{2x-y+2=5} \atop {5y+x=2}} \right. \left \{ {{2x-y=5-2} \atop {5y+x=2}} \right. \left \{ {{2x-y=3} \atop {x=2-5y}} \right. \left \{ {{2\cdot (2-5y)-y=3} \atop {x=2-5y}} \right. \left \{ {{4-10y-y=3} \atop {x=2-5y}} \right.$

$\left \{ {{-11y=3-4} \atop {x=2-5y}} \right. \left \{ {{-11y=-1} \atop {x=2-5y}} \right. \left \{ {{y=\frac{1}{11}} \atop {x=2-5\cdot \frac{1}{11}}} \right. \left \{ {{y=\frac{1}{11}} \atop {x=2-\frac{5}{11}}} \right.\left \{ {{y=\frac{1}{11}} \atop {x=\frac{22-5}{11}}} \right.\left \{ {{y=\frac{1}{11}} \atop {x=\frac{17}{11}}} \right. \\ \\ y=\frac{1}{11}; \ \ \ x=\frac{17}{11}=1\frac{6}{11}$