26-5+7-2, 27, 20, 25, 26, 97-7+3-1, 93, 92, 82, 72, 68-8+7-5, 61, 62, 63, 65, 20+9-2-5, 22, 23, 27, 21, 29-8+6-5, 45, 22, 25, 23, 31+2-1+6, 62, 71, 65, 38, 45+1+2+1, 47, 49, 43, 45, 32-1+6-7, 80, 50, 60, 30, 26-5+7-2, 26, 25, 27, 22, 65-5+3-1, 68, 62, 72, 63.

Direct Method Exercise 4

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