SOLUTION: How do I solve this system of equations
x + 2y + z = 135
x + y + z = 118
2x + 2y + 3z = 269
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Question 963687: How do I solve this system of equations
x + 2y + z = 135
x + y + z = 118
2x + 2y + 3z = 269
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
How do I solve this system of equations
x + 2y + z = 135
x + y + z = 118
2x + 2y + 3z = 269
===================
Subtract the 2nd eqn from the 1st --> y = 17
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Multiply the 1st eqn by 2, then subtract the 3rd.
=============================
I would use determinants.
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