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Question 3:

Pick out the solution from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation.

(a) 5m = 60 (10, 5, 12, 15)

(b) n + 12 = 20 (12, 8, 20, 0)

(c) p − 5 = 5 (0, 10, 5 − 5)

(d) (7, 2, 10, 14)

(e) r − 4 = 0 (4, − 4, 8, 0)

(f) x + 4 = 2 (− 2, 0, 2, 4)

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