n(P) = p + 16, n(Q) = q + 21, n(R) = r + 18 eg. p can be any number. Suppose p = 14. Then n(P) = 30 n(Q) = 30, so q = 30 -21 or 9 n(R) = 3-, so r = 301 -18 or 12
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n(P) = p + 16, n(Q) = q + 21, n(R) = r + 18 eg. p can be any number. Suppose p = 14. Then n(P) = 30 n(Q) = 30, so q = 30 -21 or 9 n(R) = 3-, so r = 301 -18 or 12