Question

x+y=105 и x:y=6 Решите пожалуйста эту систему

Answer 1

$left { {{x=105-y} atop {(105-y):y=6}} right. textless = textgreater left { {{x=105-y} atop {(105-y)=6*y}} right. textless = textgreater left { {{x=105-y} atop {6y+y=105}} right. textless = textgreater left { {{x=105-y} atop {7y=105}} right. \ textless = textgreater left { {{x=105-y} atop {y=15}} right. textless = textgreater left { {{x=90} atop {y=15}} right.$