Question

30 баллов!
Помогите!

Answer 1

Ответ:

x=14, y=2

Объяснение:

Answer 2

$\left \{ {{\frac{x+y}{8}+\frac{x-y}{6} =4 } \atop {\frac{3x+y}{4} -\frac{2x-5y}{3}=5 }} \right.\\\\\left \{ {{\frac{x+y}{8}*24+\frac{x-y}{6}*24 =4*24 } \atop {\frac{3x+y}{4}*12 -\frac{2x-5y}{3}*12=5*12 }} \right.\\\\\left \{ {{3(x+y)+4(x-y)=96} \atop {3(3x+y)-4(2x-5y)=60}} \right.\\\\\left \{ {{3x+3y+4x-4y=96} \atop {9x+3y-8x+20y=60}} \right. \\\\\left \{ {{7x-y=96} \atop {x+23y=60}|*(-7)} \right. \\\\+\left \{ {{7x-y=96} \atop {-7x-161y=-420}} \right.\\ ---------\\-162y=-324\\\\y=2$

$x=60-23y=60-23*2=60-46=14\\\\Otvet:\boxed{(14 \ ; \ 2)}$