02:08duration 2 minutes 8 seconds

Solving a two-step linear inequality with a…

Solving a two-step linear inequality with a fractional coefficient

This contains one example of solving an inequality as described in the title.

02:49duration 2 minutes 49 seconds

Simplifying a ratio of polynomials: Problem type 1

This shows how to factor the numerator and denominator of a fraction in algebra so that we can reduce the same factors ono the top and the bottom because they divide to one.