Categories Reasoning with Equations and Inequalities Solving an Inequality Post author By mpershan Post date August 24, 2012 1 Comment on Solving an Inequality What’s the mistake, and how would you move this student forward to a complete understanding of how to solve inequalities? Share this:EmailPrint ← 4 cents short of a dollar → Khan Academy Potpourri One reply on “Solving an Inequality” Because 1 is always easy, I’d have the student try -1 in the original expression, then do the comparison. I’d do the same with -10d. Then I’d try +1. Then, if we had to, I’d do +2 and then I’d talk about adding 10d to both sides of the inequality and what happens to d. I did like that this student knew that 0 was not an option. Comments are closed.