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3*5-[35*5-(2*49+6*16)/2]/7=



Răspuns :

15 -[175 -(98 +96)/2]/7
=15 -(175-194/2)/7
=15-(175-97)/7
=15-  78/7
=15-11,14
=3,86
15 - {175 - (98 + 96) / 2} / 7 = 15 - {175 - 194 / 2}/7 = 15 - ( 175 - 97) / 7 = 15 - 78 / 7 = 15 - 11,14 = 3,86