# Write a simplitiead expression for the length of QR. 13y+25 8y+5 QR= ​

Write a simplitiead expression for the length of QR.
13y+25
8y+5
QR= ​

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PQ+QR=PR
Substitute given expressions:
(8y+5)+QR=13y+25
Subtract 8y8y from both sides:
5+QR=5y+25
Subtract 5 from both sides:
QR=5y+20