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Competitive Stats
Q58Section C (Section C)58 of 60

Parameter value for which a linear system has no solution

The system of equations

x+y+2z=2,2x+3y−z=5,4x+7y+cz=6x+y+2z=2,\quad 2x+3y-z=5,\quad 4x+7y+cz=6

does NOT have a solution. Then, the value of cc must be equal to ___________.

Numerical answer: type the number (no options).

Type your answer and check it.