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11 February, 23:08

After substituting, what is the first step when evaluating X+3X-4.2 when X = 5?

A. Multiply 3 by 5

B. Add 5 and 3

C. Subtract 4.2 from 5

D. Add 3 and 4.2.

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Answers (1)
  1. 12 February, 00:55
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    After substitution, the first step when evaluating X + 3X - 4.2 when X=5, will be:

    A. Multiply 3 by 5.

    when X=5; X + 3X - 4.2 = 5 + 15 - 4.2

    X + 3X - 4.2 = 15.8

    Step-by-step explanation:

    Because multiplication has priority in addition and subtraction.
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