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1+{2x[7+(5+l):4]-15}x8=25

Răspuns :

1+{2x[7+(5+l):4]-15}x8=25
1+{2×[7+(6):4]-15}×8=
1+{2x[7+6:4]-15}×8=
1+{2x[2×9]-15 }×8=
1+{2×18-15}×8=
1+21×8=
1+168=
169