Question

{5x-3y=0
{15x-2y=55
Помогите решить пожалуйста!!! ​

Answer 1

$\left \{ {{5x-3y=0}|*(-3) \atop {15x-2y=55}} \right.\\\\\\+\left \{ {{-15x+9y=0} \atop {15x-2y=55}} \right.\\-------\\ 7y=55\\\\y=7\frac{6}{7} \\\\5x=3y=3*7\frac{6}{7} =23\frac{4}{7}\\\\x=4\frac{5}{7}\\\\Otvet:\boxed{4\frac{5}{7};7\frac{6}{7})}$