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18 May, 13:57

Solve for x.

1+|2+x|=9

x = 6 or x=-10

x = 5 or x=-9

x = 7 or x=-11

x = 4 or x=-8

+3
Answers (2)
  1. 18 May, 14:10
    0
    X could be either 6 or - 10

    1+|2+x|=9

    |2+x| = 9-1

    |2+x| = 8

    x could be 6 because 2+6=8

    x could also be - 10 because the final answer inside the '| |' becomes positive

    |2+-10|=8

    |-8|=8

    8=8

    Thus x could be 6 or - 10
  2. 18 May, 14:14
    0
    1 + |2 + x| = 9

    | 2 + x | = 9 - 1

    | 2 + x| = 8

    2 + x = 8 - (2 + x) = 8

    x = 8 - 2 - 2 - x = 8

    x = 6 - x = 8 + 2

    -x = 10

    x = - 10

    solutions are : x = 6 or x = - 10
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