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pozeczka 1,1x
x+1,1x= 21
2,1x=21
x=10
10+ 10% = 11
Odp. posadzili 11 krzewów pożeczki
10% to 1/10
Mamy wiec rownanie:
x+ x+(1/10) x = 21
(21/10) x =21
21x=210
x= 10
Agrestow bylo 10, a porzeczek o 1/10 wiecej, czyli 11
Odp.
Agrestwo posadzono 10, a porzeczek 11.