# Lesson 116 – Doodles Do Algebra

Today’s lesson is yet more practice solving first degree equations and we add known quantities (like a, b, and c) into the mix along with the unknown and numbers. Every day we just add a bit more complexity to algebra and before you know it, your child will have learned the subject completely and without tears or frustration or those horrible feelings of inadequacy. Instead she will develop and add to her overall confidence and will have an open mind about learning seemingly difficult concepts in her future.

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