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benhogi

  • one year ago

Math equation help

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  1. benhogi
    • one year ago
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    -8x+9x-21= -12 - 16

  2. benhogi
    • one year ago
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    this is my only question i need to solve for x

  3. misty1212
    • one year ago
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    HI!!

  4. benhogi
    • one year ago
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    hi

  5. misty1212
    • one year ago
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    is it \[\huge -8x+9x-21= -12 - 16\]?

  6. benhogi
    • one year ago
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    yeah

  7. misty1212
    • one year ago
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    combine like terms first which really just means compute \(-8x+9x\) and also \(-12-16\)

  8. benhogi
    • one year ago
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    x means i multiply by something right?

  9. misty1212
    • one year ago
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    lol

  10. misty1212
    • one year ago
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    you did write "solve for x" above right?

  11. misty1212
    • one year ago
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    that means x is a variable, not a times sign !

  12. benhogi
    • one year ago
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    yes

  13. misty1212
    • one year ago
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    if that is confusing change it to an \(n\) or a \(\xi\) or whatever your favorite variable is i like \(\color\magenta\heartsuit\)

  14. benhogi
    • one year ago
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    −12−16 is -28 and −8x+9x−21 is -32

  15. benhogi
    • one year ago
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    could x be -7?

  16. anonymous
    • one year ago
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    you need to go back and find out what a variable is, and what it means to say "solve for \(x\)"

  17. anonymous
    • one year ago
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    \[ −8x+9x−21 \] is not a number, i ti s an expression

  18. anonymous
    • one year ago
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    like \[-8\spadesuit+9\spadesuit-21\]

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