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a fost răspuns

[(6+6•9-88:8)-(3•7+5-63:3)-4]:4

Răspuns :

[(6+6x9-88:8)-(3x7+5-63:3)-4]:4=
=[(6+54-11)-(21+5-21)-4]:4=
=[(60-11)-(26-21)-4]:4=
=(49-5-4):4=
=(44-4):4=
=40:4=10