Explicație pas cu pas:
ღSalutare!ღ
a-42:7+2=7
a-6+2=7
a-6=7-2
a-6=5
a=5+6
a=11✅
28+72:b-12=48
28+72:b=48+12
28+72:b=60
72:b=60-28
72:b=32
b=72:32
b=2,25✅
47-56:c-11=29
47-56:c=29+11
47-56:c=40
56:c=47-40
56:c=7
c=56:7
c=8✅
(56+16:2):8+d=18
(56+8):8+d=18
64:8+d=18
8+d=18
d=18-8
d=10✅
Succes !!:)