Question

rezolvati inecuatia in |N*: 3·(x-1≤44:11

Answer 1

3x-3<=4=>  3x<=7 => x<= 7/3 . Dar x apartine numerelor naturale fara 0 => x = 1 sau x = 2(pentru ca 7/3=2,(3) ) => S={1;2}

Answer 2

3·(x-1)≤44:11
3·(x-1)≤4
=>x-1≤1|+1
    x≤2
   =>x∈{1,2}