Răspuns :
Trecem x in partea stanga , numerele in dreapta si obtinem 5x-2x=7+1
Rezolvand, 3x=8=>x=8/3
Rezolvand, 3x=8=>x=8/3
[tex]5x-7=2x+1 \\
5x-7+7=2x+1+7 \\
5x=2x+8 \\
5x-2x=2x+8-2x \\ 3x=8 \\ \frac{3x}{3}=\frac{8}{3} \\ x=\frac{8}{3}[/tex]