rezolvati urmatoarele sisteme de ecuatii.
a)
[tex] \frac{x}{2} = \frac{y}{3} \\ \frac{x}{4 } = \frac{y + 1}{7} [/tex]
b)
[tex] \frac{x}{5} = \frac{y}{2} \\ \frac{x + 1}{4} = \frac{y + 1}{2} [/tex]
c)
[tex] \frac{x - 2}{3} = \frac{y}{2} \\ \frac{x}{2} = \frac{y - 2}{8} [/tex]
Ma puteți ajuta va rog!!!​