How do you solve #-2d<5#?
You would solve this just like an equation except there is a rule for inequalities that you must keep in mind. Every time you multiply or divide by a negative number, you must reverse the inequality symbol.
Divide both sides by
Here's how I did it:
Solving inequalities is similar to solving equations. However, there are a couple rules about the direction of the inequality you have to pay attention to:
- If you multiply/divide by a negative number, you must change the direction of the inequality (like
- If you swap the left and right hand sides of the inequality, you must change the direction of the inequality
Keeping that in mind, let's solve this problem.
- We know that
#5/-2#is simply #-5/2#
- Notice that you are dividing by a negative number, so we need to change the direction of the sign to
#>#rather than #<#:
#d > -5/2#
Hope this helps!