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34,35 pls !!!!!!!!!!!!!!!

3435 Pls class=

Răspuns :

Răspuns:

34. 6×(5+4)-o+10=29-7:7

6×9-o+10=29-1

54-o+10=28

54-o=28-10

54-o=18

O=54-18

O=36

35. 33:(r+19)=80:2:5:4:2

33:(r+19)=1

R+19=33:1

R+19=33

R=33-19

R=12