Question: If a + b = P, a - b = Q, c + d = R and c-d = S & then which of

If a + b = P, a - b = Q, c

If a + b = P, a - b = Q, c + d = R and c-d = S & then which of the following is true? %3! %3D P= QR S 1. PS 2. Q = R. PS 3. R= QR S = 5. All of the above 4.

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