Truth and Consequences Revisited

Truth and Consequences Revisited

by | Jan 21, 2019 | Grades 9–12

By William McCallum What are extraneous solutions? A while ago I wrote a blog post about solving equations where I talked about seeing the steps in solving equations as logical deductions. Thus the steps \begin{align*}3x + 2 &= 5\\3x &= 3\\x &= 1\\...