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2Q - 2 1/2 = Q + 5 1/4
2Q - Q = 5 1/4 + 2 1/2
Q = 5 1/4 + 2 2/4
Q = 7 3/4
2Q - 5/2= Q + 21/4
4(2Q - 5/2)= 4(Q + 21/4)
8Q - 10= 4Q + 21
8Q - 4Q= 21 + 10
4Q= 31
Q= 31/4
Q= 7 3/4