Points​ P, Q,​ R, and S are collinear. Point Q is between P and​ R, R is between Q and​ S, and PQ overbar congruent RS overbar. If PSequals30 and PRequals23​, what is the value of​ QR

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  1. Did you make a sketch?
    On mine I let PQ=x, then RS=x
    Also let QR=y

    so we have:
    2x + y = 30
    x + y = 23
    Just subtract them and you will get y, then sub into the 2nd to get x

    pretty simple.

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