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WAEC Mathematics 2018 Theory — Question 22

Question 22 of 23 from the West African Examinations Council (WAEC) Mathematics 2018 Theory paper, with the correct answer and a full explanation.

13.(b) If 2(3,m) + n(1,2) = (8,4), find the values of m and n.

Model answer

6+n=8 → n=2. 2m+2n=4 → 2m+4=4 → m=0. So m=0, n=2.

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