Question

Simpfly: 9f + 10f - 12f

Answer 1

7f

Explanation:

To simplify you will need to do it the same way as in adding natural numbers the variable doesn't change the number

So it's going to be;

9f+10f-12f

(Nine plus Ten is equal to 19)

•The variable remains the same

19f-12f

•So you subtract 12 from 19 which is going to be;

7f

Answer 2

7f

Explanation:

Just add them all together keeping the f on

Then subtract keeping the f on