Question

решите систему уравнений

3х-у=10

х/3+у+1/5=1

Answer 1

$left { {{3x-y=10} atop {frac{x}{3}+y+frac{1}{5}=1}} right.\ left { {{y=3x-10} atop {5x+15(3x-10)+3=15}} right.\ left { {{y=3x-10} atop {5x+45x-150+3=15}} right.\ left { {{y=3x-10} atop {50x=162}} right.\ left { {{y=0,28} atop {x=3,24}} right.$

 

Ответ:{(3,24;0,28)}