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5 May, 19:33

Evaluate 3 (a - 4b) when a = - 2 and b = 5. a. 54 b. - 54 c. 39 d. - 66

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  1. 5 May, 19:38
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    Substitute and your sum will be 3 (-2-20). Multiply the numbers in the bracket by 3 and your sum will be - 6-60 which is equal to - 66
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