Triangle PQR is congruent to P'Q'R. If PQ= x+y, P'Q'+10, Q'R'= 3x-y, and QR=14, then what is x and y?

Answer 1

Well, start setting stuff equal to each other

PQ = P'Q'
x+y = 10

QR = Q'R'
3x-y = 14

so, (x,y) = (6,4)

Answer 2

5 and 6