Răspunsuri

2014-10-07T13:24:17+03:00
4z-z=24+5*12
3z=24+60
3z=84
z=28

8y+7y=1000/8*3
15y=1000/24
y=200/72
y=25/9

35+16+a=200-48
a=200-48-35-16
a=101

b-(21+2*16)=308/4 
b=77+21+32
b=130