https://web2.0calc.com/questions/help-plz_53122
I've tried many things and it's due soon!
Double the first equation, and subtract the second equation. Then you get 2B = 1.80, so a buger is 90 cents.
Then a soda is 2.10 - 2*90 = 30 cents.
I've tried that and its not right; someone please help