HOTS Mathematics Primary 6 Algebra

If 4m − 3 = 13, what is the value of 8m + 5?

A 31
B 21
C 35
D 37
Show Worked Solution

Worked Solution

Step 1: Solve for m. 4m − 3 = 13 4m = 13 + 3 = 16 m = 16 ÷ 4 = 4 Step 2: Substitute m = 4 into 8m + 5. 8(4) + 5 = 32 + 5 = 37 Answer: 37

Correct answer: 37

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