Math relations help

1. Dec 4, 2006

msimard8

1. The problem statement, all variables and given/known data

I need to express V in terms of Z and A.

i know

V= (3/5)Y + (2/5)Z

given

y=2A-3X
X=(1/6)Z + (5/6)Y

2. Relevant equations

3. The attempt at a solution

ok. my first attempt was to isolate y in the second equation, and let the two equations equal each other. That eliminates y so i cant solve the problem. I dont think

i need a hint to start at least

thanks

2. Dec 4, 2006

A simple hint: you need to express Y in terms of Z and A from the second and third equation, and then return to the first one. (i.e. eliminate X)

3. Dec 4, 2006

msimard8

yep i think i can do it now..thanks bud