[tex] \frac{x+3}{7} -2 \frac{1}{2} = \frac{x}{2} -5 \\ \\ \frac{x+3}{7} - \frac{5}{2} = \frac{x}{2} -5 \\ \\ \frac{x+3}{7} - \frac{x}{2} =-5+ \frac{5}{2 }se.aduce.la.acelasi.numitor \\ \\ 2x+6-7x=-70+35 \\ \\ -5x=-70+35-6 \\ \\ -5x=-41 |-1 \\ \\ x= \frac{41}{5} \\ \\ x=8,2[/tex]Ι
