Am nevoie neapărat de rezolvarea asta.
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[tex]\it a)\ d:\ 3x-7y+11=0 \Rightarrow\ y=\dfrac{3}{7}x+\dfrac{11}{7} \Rightarrow m=\dfrac{3}{7}\ (panta\ dreptei)[/tex]
[tex]\it b)\ \ x=1,\ y=2\ pentru\ \ 3x-7y+11\ \ \Rightarrow 3-14+11=0 \Rightarrow 0=0\ (A)[/tex]