This is the third part of the Solving Number Problems Series. The first part can be read here and the second part can be read here. In this post I will continue worked examples using problems which are slightly more complicated than the problems in the previous two parts. Without further ado, lets start with the seventh problem in the series.
Twice a number added to is times that number. What is the number?
In the two previous posts, we have learned that if is a number, then twice that number is . So, twice a number added to is represented by . Now, that number, the is five times that number of . So, we can now set up the equation
If we solve for , we have . » Read more