Question

помогите пожалуйста решить способом додавання​

Answer 1

$\left \{ {{\frac{2}{3}x+\frac{1}{5}y=1} \atop {\frac{1}{3} x-\frac{2}{5}y =0}} \right.\\\\\left \{ {{\frac{2}{3}x*15+\frac{1}{5}y*15=1*15} \atop {\frac{1}{3} x*15-\frac{2}{5}y*15 =0*15}} \right. \\\\\left \{ {{10x+3y=15}|*2 \atop {5x-6y=0}} \right.\\\\+\left \{ {{20x+6y=30} \atop {5x-6y=0}} \right. \\------\\25x=30\\\\x=1,2\\\\6y=5x\\\\y=\frac{5x}{6} =\frac{5*1,2}{6}=1\\\\Otvet:\boxed{(1,2 \ ; \ 1)}$