SOLUTION: x+2y-4z=2 y+z=5 z=3

Algebra ->  Matrices-and-determiminant -> SOLUTION: x+2y-4z=2 y+z=5 z=3       Log On


   

Question 921127: x+2y-4z=2
y+z=5
z=3
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
y+z=5 ... Start with the second equation

y+3=5 ... plug in z = 3

y = 5-3

y = 2

I'll let you finish up.