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Va roogg...16 si 17 ...Repedeeeeeee.....40 de puncte❤

Va Roogg16 Si 17 Repedeeeeeee40 De Puncte class=

Răspuns :

x-suma de bani
x=x/4+4/5·(x-x/4)+24
x=x/4+3x/5+24
20x=5x+12x+480
3x=480
x=60

17)a+b=16/3
a=6b
6b+b=16/3
7b=16/3
b=16/21
a=6·16/21=32/7