Primul exercitiu:(607-299):n+299=607-231 308:n+299=376⇒308:n=77=>n=308:77=>n=4 V:(607-299):4+299= 308:4+299=>77+299=376 Al doilea exercitiu:88:2:4+10xe=99+6:3 44:4+10xe=99+2=>11+10xe=101=>10xe=101-11=>10xe=90=>e=90:10=>e=9 V:88:2:4+10x9=>44:4+90=>11+90=101 Sper sa fie bine ce ti-am rezolvat!Succes in continuare!