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26 August, 03:54

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.

+2
Answers (2)
  1. 26 August, 04:00
    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
  2. 26 August, 04:23
    0
    The 6 should be 30 in step 2 because you have to add 18 to both sides to cancel out the - 18.
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