Question

пж помогите с последним примером,дам 30 баллов

Answer 1

$\displaystyle\bf\\5mt+4mt+3my-2my=\Big(5mt+4mt\Big)+\Big(3my-2my\Big)=\\\\=9mt-my=m\cdot\Big(9t-y\Big)\\\\m=5 \ \ ; \ \ t=0 \ \ ; \ \ y=\frac{1}{5} \\\\m\cdot\Big(9t-y\Big)=5\cdot\Big(9\cdot 0-\frac{1}{5} \Big)=5\cdot \Big(-\frac{1}{5} \Big)=-1\\\\Otvet \ : \ -1$