4x+2y=-22
y=-2x-113x-1//7*(-2x-11)=-5
23//7x+46//7=0x=(-46//7)/(23//7)
x=-2
4*(-2)+2y=-22
14+2y=0
y=-14/2
y=-7
(2x-4y)/5=(4x+6y)/3y=-(14//15)*x/2.8
(2x-4y)/5=(4x+6y)/3
x/4+(1//12)*y+(1//3)=0x/4+(1//12)*(-(14//15)*x/2.8)+(1//3)=0
2//9x+1//3=0x=(-1//3)/(2//9)
x=-1.5
-(14//15)*x-2.8*y=0
-14//15*(-1.5)-2.8y=0
1.4-2.8y=0
y=1.4/2.8
y=0.5
// - черта дроби
x1+x2=-5
Ответ:
4<2х+4<6 =4<6х+6==========
Объяснение: