SOLUTION: x+2y-2z=1 7x-4y+z=11 2x-3y+2z=5

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Question 484926: x+2y-2z=1
7x-4y+z=11
2x-3y+2z=5
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: Solve equation 2 for z. After that, perform the substitution for equations 1 and 3 that will eliminate z. From there, you'll have 2 equations with 2 unknowns. Solve this system as you normally would and then use those answers to find z.