Question

(10k ÷ 2) + 4 ≤ 14
8k + 3 = 20
k - 13 > -10
9k + 15 ≤ 31

Answer 1

The answer to each question is like that.

Question 1 :
\[\frac{ 10k }{ 2 } + 4 \le 14\]
\[5k \le 14 - 4\]
\[5k \le 10\]
\[k \le2\]

Question 2 :
\[8k = 20 - 3\]
\[8k = 17 \]
\[k = \frac{ 17 }{ 8 }\]

Question 3 :
\[k > -10 + 13\]
\[k > 3\]

Question 4:
\[9k \le 31 -15\]
\[9k \le 16\]
\[k \le \frac{ 16 }{ 9 }\]