Question:
13 + b > 34
Step 1: Keep variable on one side, and subtract 13 on both sides.
b > 21
Step 2: Now that you have the value of b, create a number line that includes the number "21"
Step 3: Since it is not "or equal too" we will use an open dot, since we do not contain that point. Put dot over 21.
Step 4: The sign is ( > ) meaning greater than. Therefore all points greater than 21 is true. See graph.
