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anonymous

  • one year ago

2.Solve. 5 = –(–z + 3) A. –8 B. 8 C. –2 D. 2

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  1. anonymous
    • one year ago
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    im guessing this one is -2..

  2. Goose.
    • one year ago
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    This one is a bit more tricky than your last one, with the (-z + 3) in parentheses... you must first distribute your - to each one inside, as it is basically -1 x -z and -1 x 3

  3. anonymous
    • one year ago
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    or plug in the numbers...

  4. Goose.
    • one year ago
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    So that'll get you z - 3

  5. Goose.
    • one year ago
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    Then just like last time, isolate your variable, add 3 to each side.

  6. anonymous
    • one year ago
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    5=(-2+3)?

  7. Goose.
    • one year ago
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    5 + 3 = z - 3 + 3

  8. anonymous
    • one year ago
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    oh yeah

  9. Goose.
    • one year ago
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    You know -3 + 3 is 0 so, z = 5 + 3

  10. anonymous
    • one year ago
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    8?

  11. Goose.
    • one year ago
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    Yes :)

  12. Goose.
    • one year ago
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    And as she was saying, you can check your answer after solving by plugging it into your variable.

  13. anonymous
    • one year ago
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    thanks

  14. Goose.
    • one year ago
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    Glad to help! :)

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