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There are two possible values of A in th...

There are two possible values of A in the solution of the
matrix equation `[[2A+1,-5],[-4,A]]^(-1) [[A-5,B],[2A-2,C]]= [[14,D],[E,F]]`,
where A, B, C, D, E, F are real numbers. The absolute
value of the difference of these two solutions, is

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