Question

The constants a, c and d are positive. Solve the inequality for x: d - cx > a

Answer 1

Firstly, subtract d on both sides of the inequality: $-cx>a-d$

Next, divide both sides by -c, (remember to flip the sign because you are dividing by a negative) and your answer will be $x$

Answer 2

d - cx > a

-cx > a - d

x < -(a - d)/c (note that the inequality sign flips because of the negative divide)