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dau coroana si 55 puncte


Dau Coroana Si 55 Puncte class=

Răspuns :

6) a+a+1+a+2=450
3a+3=450
3a=450-3
a=447:3
a=149
149+1=150
149+2=151
nr sunt:149,150,151

7)a+b=200
a:b=6r11=>a=6b+11
6b+11+b=200
7b=200-11
b=189:7
b=27
a=6·27+11
a=173