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34+(8×7+25):(4×7-19)-28

Răspuns :

34+(8×7+25):(4×7-19)-28 =

34 + [(8 × 7) + 25]:[(4 × 7) -19) - 28=

38 +(56+25):(28-19)- 28 =

38+81:9 - 28 =

38 + 9 - 28 =

=19
34+(56+25):(28-19)-28=
34+81:9-28=
34+9-28=
43-28=15