October 2021 0 7 Report
Школа придбала 15 пiдручникiв i 12 посiбникiв за однаковою цiною . За пiдручникiв заплатили на 120 грн бiльше нiж за посiбникм .Яка вартiсть усiх пiдручникiв?
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