SOLUTION: 2x +y - z=4,3x +5y +z=16,x-2y-5z=3. x+2y+z=4,x+3y-2z=2 , 3x +y+2z =6 c

Question 1120808: 2x +y - z=4,3x +5y +z=16,x-2y-5z=3.
x+2y+z=4,x+3y-2z=2 , 3x +y+2z =6 c

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
2x +y - z=4
3x +5y +z=16
x -2y -5z=3
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Add the 1st 2 equations --> 1 eqn in x & y
Multiply the 1st equation by 5, then subtract eqn 3 --> another equation in x&y.
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Solve for x or y, the sub and find the other 2 variables.
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x+2y+z=4
x+3y-2z=2
3x +y+2z =6
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Eliminate any of the 3 variables first, etc.
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email via the TY note for help or to check your work.

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