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OpenStudy (anonymous):
Triangle DEF is similar to triangle PQR. Side DE measures 3, side EF measures 7 and side FD measures 9. Side PQ measures 5x – 25 and side QR measures 6x + 4. Find the value of x.
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OpenStudy (anonymous):
QR ~ EF DE ~ PQ (6x+4)/7 = (5x-25)/3 Solve for x
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