We need to change the English writing into an inequality. We know that a number "n" added to 7 is less than or equal to 9. This can be written as follows: n + 7 <span>≤ 9
Now, we will isolate the "n" at one side of the inequality. We will do this by subtracting 7 from both side as follows: n + 7 - 7 </span><span>≤ 9 - 7 n </span><span>≤ 2</span>
