Question

Solve: -rt - 80 > 30 for r. show your work!

Answer 1

Steps:

So to solve for a variable, we must isolate it onto 1 side of the inequality. In this case, we must isolate r. Firstly, add 80 to both sides of the inequality:

`-rt>110`

Next, divide both sides by t:

`-r>(110)/(t)`

Next, multiply both sides by -1. Since we are multiplying by a negative number, flip the inequality symbol as well:

`r<-(110)/(t)`

Answer:

In short, your final answer is
`r<-(110)/(t)`