More on inequalities (7th grade math/prealgebra)

First we look at a problem that arises when you divide an inequality by a negative number. There is a workaround... you can add something to both sides first, to avoid that. But the shortcut is to flip the sign.

Secondly, you will learn how to check a solution to an inequality. We take test values, some that are in the solution set and some that are not, and check whether they fulfill the inequality or not.

See also

Word Problems and Inequalities — video lesson

Math Mammoth Grade 7 curriculum (pre-algebra)

Back to pre-algebra videos index

Back to the index of all videos