SOLUTION: x + z = -2
x + y + 4z = -1
2x + 2z + w = -1
Algebra.Com
Question 1073439: x + z = -2
x + y + 4z = -1
2x + 2z + w = -1
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
subtract first from second.
Infinite solutions, and any real value for y is possible.
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