SOLUTION: Solve each system by substitution. x-y+2z=7=2x+y+z=8=x-z=5

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Question 336770: Solve each system by substitution.
x-y+2z=7=2x+y+z=8=x-z=5
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
Too many = signs.