(36+17)+x=82,c-(62-47)=39
(36+17)+x=82, х=82-(36+17) х=82-53 х=29 __________________ с-(62-47)=39, с=39+(62-47) с=39+15 с=54
53 + х = 82 х = 82 - 53 х = 29 с - 15 = 39 с = 39 + 15 с = 54