Answer: a) -240
<u>Step-by-step explanation:</u>

Answer:
oki
Step-by-step explanation:
In order to have the variable by itself you have to add 20 to both sides. So your answer would be a=b+20. I hope this helps love! :)
Answer:
I don't know thank answer sorry I just really need points you can report me if you want but I REALLY need some