If anyone can help me with this problem, that would be great. Thanks in advance.

I can't seem to set up this problem correctly.

Twice as many dimes as quarters

3 times as many nickles as quarters

how many dimes are there?

Total of 54 coins

This is what I came up with

Q+N+D=54

2d=Q

3n=Q

Q+3n+2d=54?