Question

помогите пжпжпжпж оч срочно

Answer 1

$\displaystyle \left \{ {\frac{5u}{2}+\frac{t}{5}=2,7 } \atop {\frac{u}{3}-\frac{t}{6}=\frac{1}{6} }} \right.\\ \\\left \{ {{\frac{5u}{2}+\frac{t}5}=2,7 } \atop {u=\frac{1}{2}+\frac{1}{2}t }} \right. \\\\\frac{5(\frac{1}{2}+\frac{1}{2}t) }{2}+\frac{t}{5}=2,7\\ \\t=1\\ \\u=\frac{1}{2}+\frac{1}{2}*1\\ \\u=1\\ (t,u)=(1,1)$