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2014-10-03T22:09:10+03:00
A+2B+C=(A+B)+(B+C)=24+5=29
2A+5B+3C=2A+2B+3B+3C=2(A+B)+3(B+C)=2·24+3·5=48+15=63
3A+7B+4C=3A+3B+4B+4C=3(A+B)+4(B+C)=3·24+4·5=72+20=92
Comentariul a fost şters
SI NU TOT AIA AM SCRIS SI EU?
Comentariul a fost şters
putin imi pasa :P
2014-10-03T22:10:57+03:00
A)a+2b+c=a+b+b+c=24+5=29
b)2a+5b+3c=2(a+b)+3(b+c)=2X24+3X5=48+15=63
c)3a+7b+4c=3(a+b)+4(b+c)=3X24+4X5=72+20=92