a)[tex]3 \frac{3}{5}x+1=2x+ \frac{9}{4} \\ \frac{18}{5}x+1=2x+ \frac{9}{4} \\ \frac{18x-2*5x}{5}= \frac{9-4}{4} \\ \frac{8x}{5}= \frac{5}{4} \\ x= \frac{4}{5}* \frac{5}{8} \\ x= \frac{4}{8}=\ \textgreater \ x= \frac{1}{2} [/tex]
d)2x+8=x+15
2x-x=15-8
x=7
sper ca te-am ajutat
