Need Help : Algebra

[wilz]

hey need a bit of help on this question. my Algebra is a bit rusty haven't done it in 3 years....

X+Y+Z=?

X=6
Y=X*2+0.5*Z     
Z=X+Y

so far i got
X=6
y=6*2+0.5*Z
  Y=12+O.5*Z

Z=6+?

but i can't figure out z. any one able to help?

[No Compute]

         Z = 6 + 12 + 0.5z
Z - 0.5Z = 18
     0.5Z = 18
          Z = 36

Y = 2X + 0.5Z
Y = 12 + 18
Y = 30

double check

Z = X + Y
Z = 6 + 30
Z = 36

--------------------

X + Y + Z = 6 + 30 + 36 = 72

Probably wrong

[Blood$]

well I would but I'm definatly the worst at math on this entire forum : FACT

I'm about to be a senior and I gotta take Algebra 2 next year, it's gonna suck 

[wilz]

         Z = 6 + 12 + 0.5z
Z - 0.5Z = 18
     0.5Z = 18
          Z = 36

Y = 2X + 0.5Z
Y = 12 + 18
Y = 30

double check

Z = X + Y
Z = 6 + 30
Z = 36

--------------------

X + Y + Z = 6 + 30 + 36 = 72

Probably wrong

thanks for the help