Question

How do you solve `-273> -13z`?

Answer 1

`z > 21`

Explanation:

Inequalities may be solved the same as equations except in the case when you need to multiply or divide the inequality by a negative number - in this case, the sign of the inequality changes around.

`therefore -273 > -13z` implies that `(-273)/(-13) < z`

`therefore z > 21`.