SOLUTION: If x = 2y and 8y = z, what is x in terms of z

Algebra ->  Equations -> SOLUTION: If x = 2y and 8y = z, what is x in terms of z      Log On


   

Question 885836: If x = 2y and 8y = z, what is x in terms of z
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
If x = 2y and 8y = z, what is x in terms of z
solve first equation for y
y = x/2
now substitute for y in second equation
8(x/2) = z
4x = z
x = z/4