isom (7/6 z- 6/10 y)* 4/10 + 5/10 *( 36/10 y-14/15 z)= 28/60 z-24/100 y+ 180/100 y -70/150 z= 156/100 y+14/30 z-7/15 z= 156/100 y+14/30 z-14/30 z= 156/100 y= 1.56y

37[+5.6=116.6
37x=111
x=3

belka7ili14 4. 12-(3x-1 5/12)=10 7/24
12-3x+1 5/12=10 7/24
3x=13 5/12 - 10 7/24
3x=3 3/24
3x=3 1/8
x=25/8 * 1/3
x=25/24=1 1/24