Question

уравнение, заранее спасибо

Answer 1

$left { {{1/3x+1/4y-2=0} atop {5x-y=11}} right. left { {{1/3x+1/4y-2=0} atop {x=(11+y)/5}} right. left { {{1/3x+1/4y-2=0} atop {x=(11+y)/5}} right. left { {(1/3)*(11+y)/5+1/4y-2=0} atop {x=(11+y)/5}} right. left { 11/15+1/15y+1/4y-2=0} atop {x=(11+y)/5}} right. left { (4+15)/60y-19/15=0} atop {x=(11+y)/5}} right. left { 19/60y=19/15} atop {x=(11+y)/5}} right. left { y=19/15*60/19} atop {x=(11+y)/5}} right. left { y=4} atop {x=(11+y)/5}right.$$left { y=4} atop {x=(11+4)/5}right. left { y=4} atop {x=3}right.$
Ответ: (3;4).

Answer 2

можно подробнее??

Answer 3

Можно, но зачем? :D

Answer 4

спасибо уже решили:)