a)-756:x=9 x= -756:9= -84
b)187:y= -11 y=187:-11= -17
c)-774:z= 43 z= -774:43= -18
d)112:a=4 =28
e)34:x=17 x=2
f)0:u=0 u=0
g)-135:v=325=-0.4153846153846154
