10th grade
posted by Sammy .
3 points on a line Q,P,R (In order)
if QP =2x
and QR =2x+1
and PR =21
Solve for x

QP + PR = QR
2x + 21 = 2x + 1
However, this doesn't make sense, since subtracting 2x from both sides gives you 21 = 1. Do you have typos? 
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reply to PSYDAG
Typos
I was told no
but I think yes
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