SOLUTION: Solve the simultaneous equations a + b + c + d = 0 2a - 2b + 3c - 3d = 0 9a + 9b + 4c + 4d = - 1 -18a + 18b - 12c + 12d = 7

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Question 1137705: Solve the simultaneous equations
a + b + c + d = 0
2a - 2b + 3c - 3d = 0
9a + 9b + 4c + 4d = - 1
-18a + 18b - 12c + 12d = 7

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
There are online solvers for up to 10 by 10 matrices.
Maybe more now.
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If you just want the answer, use one of them.

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