Răspunsuri

2014-05-06T18:45:23+03:00
A+b+c=75
b=a/4
c=2b+19=2*a/4+19=a/2+19(se amplifica cu2)=a/2+38/2=38a/2(se simplifica2 cu 38)=19a
a(se amplifica cu4)+a/4+19a(se amplifica cu 4)=75(se amplifica cu 4)
4a+a+76a=75
81a=75
a=75/81
b=a/4=75/81:4=75/81*4=300/81(se simplifica cu 3)=100/27
c=19:75/81=19*81/75=1531/75

nu te-am inteles nimic cat este a? b?si c?
mai simplu