JSCE Mathematics 2023 Objective — Question 37

Question 37 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

Which of the above expressions (i - iv) are equivalent to -3m + 5n that fill up the diagram?

A. I and II
B. I, II and IV
C. I, II and IIICorrect
D. All the options

Explanation

(i) −35m + 28m + 4m = −3m and −5n + 10n = 5n. (ii) −3m − 2m + 2m = −3m and −7n + 12n = 5n. (iii) 15m − 18m = −3m and 18n − 17n + 4n = 5n. Three empty boxes need three expressions: I, II and III.

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