# Lesson 117 – Doodles Do Algebra

Today is the last day of lessons on the topic of solving simple first degree equations. In the next lessons we will move onto the various methods of solving two unknowns, instead of just one.

But for today, your child needs positive feedback and encouragement. He needs to know that he has learned a tremendous amount of algebra so far and from now until the end of the course, it will only get more fun.

1. $x=abc/(c+b)$
2. $x=(b+c)/a$
3. $x=b^2/(b-a)$