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4+[2×(32:8-1)-3]=?????

Răspuns :

4+[2×(32:8-1)-3]=7
4+[2×(4-1)-3]=
4+(2×3-3)=
4+(6-3)
4+3
=7
4+[2x(4-1)-3=
4+[2x3]-3=
4+6-3=
10-3=
7