SOLUTION: Solve the system 4y=12 X+4y+z=15 y-3z=0

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Question 338632: Solve the system
4y=12
X+4y+z=15
y-3z=0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the system
4y=12 --> y = 3
X+4y+z=15
y-3z=0 y = 3, find z
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X+4y+z=15 y & z are known, find x