Question

помогитi плизз......

Answer 1

$left { {{x/2-y/3=1} atop {x/4+2y/3=8}} right. \ \ left { {{}frac{3x-2y}{6}=1  atop {}frac{3x+8y}{12}=8 } right. \ \ left { {{3x-2y=6} atop {3x+8y=96}} right. \ -----------------\ 10y=90;y=9\ \ x/2-9/3=1\x/2=4;x=8$

$otvet:(8;9)$

$left { {{x/4+y/4=2} atop {x/6+y/3=2}} right. \ \ left { {{x+y=8} atop {x+2y=12}} right. \ -------------\ y=4\ \ x=8-4=4\ \ otvet:(4;4)$

Answer 2

это как понять

Answer 3

на А не обращай внимание ( пробел)

Answer 4

ок спасибо

Answer 5

помогитi плизз.........
https://znanija.com/task/30151941?

Answer 6

тоже помоги)

Answer 7

$1); ; left { {{frac{x}{2}-frac{y}{3}=1; |cdot 6} atop {frac{x}{4}+frac{2y}{3}=8; |cdot 12}} right. ; left { {{3x-2y=6} atop {3x+8y=96}} right. ominus left { {{x=frac{1}{3}(2y+6)} atop {-10y=-90}} right. ; left { {{x=8} atop {y=9}} right. ; Rightarrow ; ; (8,9)$

$2); ; left { {{frac{x}{4}+frac{y}{4}=2; |cdot 4} atop {frac{x}{6}+frac{y}{3}=2; |cdot 6}} right. ; left { {{x+y=8} atop {x+2y=12}} right.ominus left { {{x=8-y} atop {-y=-4}} right. ; left { {{x=4} atop {y=4}} right. ; Rightarrow ; ; (4,4)$

Answer 8

ужi позно

Answer 9

для меня не поздно