Question: Solve the system using z as the parameter. Determine what x equals. x + 3y - z = 8 -x + 2y + 6z =

Solve the system using z as the parameter. Determine what x equals.

x + 3y - z = 8

-x + 2y + 6z = 7

Enter your answer as "x=" followed by the expression for x . Do not use any extra spacing between characters.

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