SOLUTION: solve for z 5x+z=y -y+2x=3=-z 3x+4y=18

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Question 808946: solve for z 5x+z=y
-y+2x=3=-z
3x+4y=18
Found 2 solutions by Alan3354, Okeke_Christian:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve for z 5x+z+=y
-y+2x=3=-z Too many equal signs.
3x+4y=18

Answer by Okeke_Christian(26) About Me  (Show Source):
You can put this solution on YOUR website!
5x%2Bz=y ------eqn. 1
-y%2B2x=3=-z ------eqn. 2
3x%2B4y=18 ------eqn. 3

From eqn. 2,
3=-z
Therefore,
z=-3
Did you say "solve for z"?