How do you solve the equation #20=-4c-8#?

Question

↳Redirected from "What polyatomic ion has a positive charge?"

2578 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-07-13T13:40:21

#c=-7#

I would take the #-4c# over the other side of the equals sign and make it positive to give:

#4c+20=-8#

You can then subtract 20 from both sides to give;

#4c=-20-8#

#4c=-28#

Divide both sides by four to give:

#c=-7#