If i have an end result that has a row of 0's in A but numbers in b, is that a definite sign that something is wrong? so I'll end up with something like 0x1 + 0x2 + 0x3 = a+b+c Obviously 0 != any number.
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Originally Posted by Kuma is that a definite sign that something is wrong? No, it isn't. That equation provides a necessary (not sufficient) condition for the system to be compatible: $\displaystyle a+b+c=0$ .
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