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anonymous

  • one year ago

Can someone plz check mah work −4(x + 8) + 25 ≤ −2 + 1(x − 50) −4x − 32 + 25 ≤ −2 + 1x − 50 −4x − 7 ≤ 1x − 52 −5x ≤ −45 x ≤9

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  1. anonymous
    • one year ago
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    solving inequalities

  2. anonymous
    • one year ago
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    your correct

  3. radar
    • one year ago
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    Did you end up with:\[-5x \le-45\]

  4. radar
    • one year ago
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    If so when you divide thru by -5, you must reverse the sense of the inequality.

  5. radar
    • one year ago
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    If that is the case, your solution is incorrect.

  6. anonymous
    • one year ago
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    Should I have changed it to ≥ instead of ≤ ?

  7. radar
    • one year ago
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    Yes, if you divide or multiply thru by a negative number, the rule is to reverse the inequality sign.

  8. radar
    • one year ago
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    If you got. \[-5x \le-45\]\[x \ge9\]

  9. radar
    • one year ago
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    Because, you divided both sides by a -5.

  10. anonymous
    • one year ago
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    ahh okay thankyou! @radar

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spraguer (Moderator)
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