Question

Află numarul necunoscut:
a-42:7+2=7

28+72:b-12=48

47-56:c-11=29

(56+16:2):8+d=18​

Answer 1

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 !!:)