MATH PLEASE HELP
posted by steph .
A certain molecule contains twice as many atoms of hydrogen as oxygen and one more atom of carbon than hydrogen. If there are 31 atoms altogether in the molecule. how many atoms of carbon are there?

So if oxygen is x, then hydrogen is 2x, and would be 2x+1.
x+2x+2x+1 = 31
5x+1=31
5x=30
x=6
Therefore there are 6 oxygen, 12 hydrogen, and 13 carbon atoms. 
maths is very simple u r kmugup formula only and then do sum