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Danydanmg
a fost răspuns

Afla termenul necunoscut :

a-42:7+2=7
28+72:b+12=48
47-56:c-11=29
(56+16:2):8+d=18

Răspuns :

Renatemambouko
a-42:7+2=7
a-6=7-2
a=11

28+72:b+12=48
72:b=48-12-28
72:b=8
b=9

47-56:c-11=29
-56:c=29+11-47
56:c=7
c=8

(56+16:2):8+d=18
(56+8):8+d=18
64:8+d=18
8+d=18
d=10
Amalia01
a-42:7+2=7
a-6=7-2
a=6+5
a=11

28+72:b+12=48
72:b=48-12-28
72:b=8
b=9

47-56:c-11=29
-56:c=29+11-47
56:c=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
Sper ca te-am ajutat!!!