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anonymous

  • one year ago

Solve for x: −3|x + 7| = −12

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  1. anonymous
    • one year ago
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    @Vocaloid

  2. Vocaloid
    • one year ago
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    start by dividing both sides by -3

  3. anonymous
    • one year ago
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    x+4 = =12?

  4. Vocaloid
    • one year ago
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    nope, not quite -12/(-3) = ?

  5. anonymous
    • one year ago
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    4

  6. anonymous
    • one year ago
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    This is what i was given x = 5 \3, x = −19\3 x = −3, x = −11 x = −3, x = 11 No solution

  7. Vocaloid
    • one year ago
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    good, that gives us |x + 7| = 4 now solve: x + 7 = 4 AND x + 7 = -4 you will get two x-values.

  8. anonymous
    • one year ago
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    x = −3, x = 11?

  9. Vocaloid
    • one year ago
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    -3 is right 11 is not

  10. Vocaloid
    • one year ago
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    x + 7 = -4 x = ?

  11. anonymous
    • one year ago
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    Would it be -11?

  12. Vocaloid
    • one year ago
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    yup, so our answers are x = -3 and x = -11

  13. anonymous
    • one year ago
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    I get how the one is -3 but don't understand how it is -11. Do you have time and mind explaining?

  14. Vocaloid
    • one year ago
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    sure x + 7 = -4 now we subtract 7 from each side x + 7 - 7 = -4 - 7 x = -4 - 7 = -11

  15. anonymous
    • one year ago
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    Cause when i did it i got 1.5714 that's why im a bit confused

  16. anonymous
    • one year ago
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    Ohhh! OK thank you so much for the help!

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