Question

C ={ x apartine nr. naturale | 3x + 2 mai mic sau egal cu 14}​

Answer 1

$3x + 2 \leqslant 14$

$3x \leqslant 14 - 2$

$3x \leqslant 12$

$x \leqslant \frac{12}{3}$

$x \leqslant 4$

$c ={0 \: 1 \: 2 \: 3 \: 4}$

Answer 2

C = { x ∈ N | 3x + 2 ≤ 14 ​}

3x + 2 ≤ 14

3x ≤ 14 - 2

3x ≤ 12

x ≤ 4

x = { 0, 1, 2, 3, 4 }

C = { 0, 1, 2, 3, 4 }