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38+38x(11xb-61x5:5)=2x(100+14) urgenttt!!!!!!!!!!
ofer 15 puncte


Răspuns :

38+38*(11b-305:5) = 200+28
38+38*(11b-61) = 228
38*(11b-61) = 228-38
38*(11b-61) = 190
11b-61 = 190:38
11b-61 = 5
11b = 5+61
11b = 66
b = 66:11
b = 6