Here's the question you clicked on:
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what is the solution set for |-x + 2| = 5
\[|x|=a \rightarrow x=a\;and\; x=-a \] then check to see if the solutions exist by plugging in
you will have 2 equations for that.. -x + 2 = 5 and -x + 2 = -5 then you can solve for the values for x..