Rapoiidid pls pls pls am nevoie urgen maxim pana la 18:10 sa fie gata aceste 3 exercitii plssss.Dau coroana
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1.
f+F=358
f=F+30 rezulta F+30+F=358
2F=320
F=160
2. 39+40=79 (am impartit 79 la 2, mi a dat 39,5 si am rotunjit)
3. l+L=99kg
L=l-19
l+l-19=99
2l=99-19
2l=80
l=80÷2
l=40
L=99-40=59