6. You come across the following system of equations, in which one of the coefficients is illegible (here represented by a question mark. 3x+10y + 162 =-5 2x + 7y+11z = ? x + 3y + 5z = -1 (a) For which values of ? does there exist a solution? (b) In this case (or cases), find all solutions.

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Q: If A= -4 -3 -2 0 3 4 0 -1 -3 and B= -2 -2 2 4 1 1 2 -4 -1   4A-3B=

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Q: then A = A(5B)= and B= -2 -10 [88]

A: given  A=35-14B=-2-10-87

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A: Topic = Equations

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