ответ: u=12 y=6.
Объяснение:
(u+y)/6-(u-y)/3=1 |×6 u+y-2*(u-y)=6 -u+3y=6 |÷(-1)
(2u-y)/6-(3u+2y)/3=-13 |×6 2u-y-2*(3u+2y)=-78 -4u-5y=-78
u-3y=-6 u=3y-6
-4*(3y-6)-5y=-78
-12y+24-5y=-78 |÷(-1)
12y-24+5y=78
17y=102 |÷17
y=6
u=3*6-6=18-6=12.
ответ:u=12;y=6
Объяснение:{u+y-2(u-y)=6 , 2u-y-2(3u+2y)=-78;
{-u+3y=6, -4u -5y=-78;
{-u=6-3y, 4(6-3y)-5y=-78;
{-u=6-3y,24-12y-5y=-78;
{-u=6-3y,-17y=-102;
{ y=6,u=12.
ответ: u=12 y=6.
Объяснение:
(u+y)/6-(u-y)/3=1 |×6 u+y-2*(u-y)=6 -u+3y=6 |÷(-1)
(2u-y)/6-(3u+2y)/3=-13 |×6 2u-y-2*(3u+2y)=-78 -4u-5y=-78
u-3y=-6 u=3y-6
-4*(3y-6)-5y=-78
-12y+24-5y=-78 |÷(-1)
12y-24+5y=78
17y=102 |÷17
y=6
u=3*6-6=18-6=12.
ответ:u=12;y=6
Объяснение:{u+y-2(u-y)=6 , 2u-y-2(3u+2y)=-78;
{-u+3y=6, -4u -5y=-78;
{-u=6-3y, 4(6-3y)-5y=-78;
{-u=6-3y,24-12y-5y=-78;
{-u=6-3y,-17y=-102;
{ y=6,u=12.