If $- k + 77 = 97 - 20$ then what is the value of $k$ ?____

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Solution

Lets solve for $k$

$- k + 77 = 97 - 20$

$- k + 77 = 77$

Subtracting 77 from both sides

$- k = 77 - 77$

$- k = 0$

$k = 0$

The correct answer is 0

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