Question

4p – 6q + 3r from 12p + 7q – 21r​

Answer 1

Answer:

12p+7p-21r -(4p-6q+3r)

12p+7q-21r-4p+6q-3r(after multiplying - sign with bracket I hope you know this)

rearrange terms

12p-4p+7q+6q-21r-3r

8p+13q-24r

I hope this helps you do mark as brainliest and also fallow me