 Hello and welcome to the session. In this session we will discuss the following question and the question says, solve the in equation 3n plus 5 is less than 21 where n belongs to the set of natural numbers. Draw the graph of solution set. Let's start the solution now. We are given the in equation 3n plus 5 is less than 21. Now we subtract 5 from both the sides so we get 3n plus 5 minus 5 is less than 21 minus 5. The inequality remains the same because same quantity is being subtracted from both the sides. Now 5 and 5 get cancelled so this implies 3n is less than 16. Now we divide both sides by 3 so we get n is less than 15 by 3. This implies n is less than 5.33. We are given that n belongs to the set of natural numbers so the solution set is all the natural numbers which are less than 5.33. We know that natural numbers less than 5.33 are 1, 2, 3, 4, 5. So this is our solution set for the given question. We now draw the graph for the solution set. Let us first draw the number line. So this is our number line where the numbers to the right of 0 are all positive numbers and numbers to the left of 0 are negative numbers. Now we will show the solution set on this number line that is we will plot the points 1, 2, 3, 4 and 5 on this number line. So this is the graph of the solution set and it consists of the numbers 1, 2, 3, 4, 5 only and no other numbers are included. With this we end our session. Hope you enjoyed the session.