Răspunsuri

2014-05-19T15:03:05+03:00
A= carti
b=caiete
2a+4b=60
a=3b
3*2b+4b=60
6b+4b=60
10b=60
b=6
a=3*6
a=18

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2014-05-19T15:04:32+03:00
A= carti
b= caiete

2a+4b=60 /:2
a+2b=30
a=3b

3b+2b=30
5b=30
b=30:5
b=6 lei(un caiet costa 6 lei)

a=3*6
a=18 lei (o carte costa 18 lei)
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