Notam a scaune si b banci.
a+b = 60
a x 108 + b x 210 = 8928
108a + 108b = 6480
108a + 210b = 8928
102b = 2448
b=24 banci si a = 60-24 = 36 scaune
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Notam a scaune si b banci.
a+b = 60
a x 108 + b x 210 = 8928
108a + 108b = 6480
108a + 210b = 8928
102b = 2448
b=24 banci si a = 60-24 = 36 scaune