SOLUTION: x-y+5z=19
3x+z=4
x+2y+z=6
Algebra.Com
Question 1131323: x-y+5z=19
3x+z=4
x+2y+z=6
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
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x-y+5z=19
3x+z=4
x+2y+z=6
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E2 gives .
2*E1+E3 gives
Substitute for z in that result:
-
This is one of the variables solved.
Returning to E2,
Another variable now solved.
Use both of these values to find the last or y variable.
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