5)
7*x=35=>x=35:7=>x=5
-84*y=-756=>x=-756:(-84)=>x=9
a*(-4)=112=>a=112:(-4)=>a=-28
u*(-43)=-774=>u=-774:(-43)=>u=18
6)
x/9=3=>x=9*3=>x=27
y/-11=11=>x=-11*11=>x=-121
z/-13=-12=>z=-13*(-12)=>z=156
a/-17=11=>a=-17*11=>a=-187
m/1=34=>m=1*34=>m=34
Coroana?