Answer to Question #231755 in Geometry for dEsHaWn

Question #231755

If PQ = x – 5, QR = 2x – 1, and PR = 21, find x. x =

Expert's answer

Let "PQ = x - 5,\\ QR = 2x - 1," and "PR = 21." Taking into account that "PR=PQ+QR," we get that "x-5+2x-1=21," and hence "3x=27." It follows that "x=9."

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