is really a family of equations, because for each value of k, we get a different equation with the unknown x. The letter k is called a parameter for this family. What value should we pick for k to make the given value of x a solution of the resulting equation

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Answer:

Follows are the solution to this question:

Step-by-step explanation:

please find the complete question in the attached file:

In view of their choices, they could solve this problem by linking x and k finding values that meet the value.  

a) In the family for equations they have, the plugin first x value.

[tex]\to 3 \times O +k-5=k \times 0 -k+1 \\\\\to k-5 =-k+1 \\\\\to 2k =6 \\\\\to k= \frac{6}{2} \\\\[/tex]

[tex]=3\\[/tex]

It is also obvious that k = 3 makes x = 0 for that equation family.  

b) See now the second x value:

It is also obvious that k=3 renders a solution for this equation family of x=1.

c)

We plug in the 3rd of x, finally.

[tex]\to 3 \times 2 + k-5=k \times 2-k+1 \\\to 6+ k-5= 2k-k+1 \\\to k+1= k+1 \\\to k-k= 1-1\\\ \ \ \ 0=0[/tex]

So k could be any real value and x=2 could be a solution for the equations family.  

a) 3

b) 3

c) Any real value

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