Given that a = 7 and b = 4, find the value of 5a − 3(b − 2).
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Worked Solution
Step 1: Substitute a = 7 and b = 4 into 5a − 3(b − 2): we get 5(7) − 3(4 − 2).
Step 2: Apply BODMAS — evaluate the bracket first: (4 − 2) = 2. The expression becomes 5(7) − 3(2).
Step 3: Multiply: 5(7) = 35 and 3(2) = 6. The expression becomes 35 − 6.
Step 4: Subtract: 35 − 6 = 29.
Final answer: 29.
Answer: 29
Correct answer: 29
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