Question

Can someone explain to me how to solve this -3d< -18

Answer 1

To solve

`-3d<-18`

First we have to multiply both sides by -1. This operation flips the inequation sign (not if you multiply by a positive number.

`3d>18`

And now we divide both sides by 3. Since it's positive, the inequation sign doesn't change.

`(3)/(3)d>(18)/(3)`

And solve the fractions:

`d>6`