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:

$-r>\frac{110}{t}$

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

$r<-\frac{110}{t}$

Answer:

In short, your final answer is $r<-\frac{110}{t}$