If p= (2q/5) and q-2p=3p-2, what is the value of 3p? (Show your work please.)

Question

anonymous · Answer

@satellite73

anonymous · Answer

Guys I've been working at this problem for an hour and I've gotten three different answers. I'm not sure what I'm doing wrong. My answers aren't matching up with what the answer booklet says. Can someone explain to me how to solve this problem?

marissalovescats · Answer

You plug p=(2q/5) in for all the ps in q-2p=3p-2 to solve for q. 

Then you plug q into p=(2q/5) to solve for p and then you times it by 3 to get 3p

marissalovescats · Answer

I can do the work on paper and attach a file to show you if you'd like

anonymous · Answer

I did that but I must be doing something wrong after I plug (2q/5) for p in. Can you show me a step by step please?

marissalovescats · Answer

Yes

anonymous · Answer

Yes, that would be great!

marissalovescats · Answer

Okay so we have p=2q/5 so we plug that in here: |dw:1402283858003:dw|

Make sense so far?