Răspunsuri

2014-06-11T13:59:58+03:00
A |___a____|
b |___a____|..2..|
c |_______c__________|
d |_______c__________|...2..|             si c+d+e=18
e |_______c__________|...2..|....2..|

Deci c+d+e=18
c+c+2+c+2+2=18
3c+6=18
3c=18-6
3c=12
c=18:3
c=4

d=4+2
d=6

e=4+2+2
e=8

Stim ca a+b+c+d+e+=34 si
             c+d+e=18. Inlocuim pt a-l afla pe a+b

a+b+18=34
a+b=34-18
a+b=16
a+a+2=16
2a=16-2
2a=14
a=14:2
a=7

b=7+2
b=9