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MathematicsMathematics
3 July, 00:42

Alice solved the following equation:

-18 - 3x = 12

-3x = 6

x = - 2

Which of the following statements is true?

Alice is correct.

The 6 should be 30 in step two.

The 6 should be - 6 in step two.

The 6 should be - 4 in step two.

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Answers (2)
  1. 3 July, 03:41
    0
    The 6 should be 30 in step 2 because you have to add 18 to both sides to cancel out the - 18.
  2. 3 July, 04:04
    0
    So

    -18-3x=12

    to get to - 3x=12+-somthing

    we must add 18 to both sides or

    +18-18-3x=12+18

    -3x=30

    so 'The 6 should be 30 in step 2' is correct

    x=-10
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Home » Mathematics » Alice solved the following equation: -18 - 3x = 12 -3x = 6 x = - 2 Which of the following statements is true? Alice is correct. The 6 should be 30 in step two. The 6 should be - 6 in step two. The 6 should be - 4 in step two.
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