2(x+1)=14 2x+2=14 2x=14-2 2x=12 /:2 x=6 pozdrawiam ;]
2(x+1)=14 2x+2=14 2x=14-2 2x=12 /:2 x=6
2(x+1)=14 2x+2=14 2x=14-2 2x=12/:2 x=6