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Emllyk

  • 2 years ago

Evaluate the expression, using the given value of the variable. 3 – 7x + 2x when x = 3 A. –30 B. –12 C. –18 D. –24

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  1. PigPresident
    • 2 years ago
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    it is going to look like this right: 3 - 7 * 3 + 2 * 3

  2. Emllyk
    • 2 years ago
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    i think so... idk my math grades went down hill after 5th grade so i have no idea

  3. PigPresident
    • 2 years ago
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    what grade r u in?

  4. Emllyk
    • 2 years ago
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    7th...

  5. PigPresident
    • 2 years ago
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    i am in 7th grade and math is my best subject...

  6. PigPresident
    • 2 years ago
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    oh COOL!!

  7. Emllyk
    • 2 years ago
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    Im a nerd in ALL other classes tho its just when the alphabet became a grade i paniced

  8. PigPresident
    • 2 years ago
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    try evaluating what i told u just TRY

  9. Emllyk
    • 2 years ago
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    I just need the answer tho

  10. froggyfroggy
    • 2 years ago
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    hmm

  11. PigPresident
    • 2 years ago
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    ohh dont worry u will get better trust me.. just like me in 4th grade i was always getting f and d's i promise..

  12. PigPresident
    • 2 years ago
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    just try

  13. Emllyk
    • 2 years ago
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    umm 15

  14. Emllyk
    • 2 years ago
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    I HAVE NO CLEAR IDEA MY MIND IS FOGGED

  15. PigPresident
    • 2 years ago
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    let me try it..

  16. PigPresident
    • 2 years ago
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    remember PEMDAS

  17. Emllyk
    • 2 years ago
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    sorry caps

  18. PigPresident
    • 2 years ago
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    follow that order

  19. Emllyk
    • 2 years ago
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    what on this great planet is that?

  20. PigPresident
    • 2 years ago
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    P Parentheses first E Exponents (ie Powers and Square Roots, etc.) MD Multiplication and Division (left-to-right) AS Addition and Subtraction (left-to-right) WOAH U NEVER LEARNED IT WOW!!

  21. Emllyk
    • 2 years ago
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    i WAS smart in gt to its math kicks me un the hind end...

  22. DontLikeMathButOhWell
    • 2 years ago
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    3-7(3)+2(3) PEMDAS -7 x 3 = -21 3-21+2(3) 2 x 3 = 6 3-21+6 = -12 Your answer is B

  23. PigPresident
    • 2 years ago
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    yup u r correct bc a negative * a Positive is A Negative

  24. Emllyk
    • 2 years ago
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    thank you soo much

  25. Emllyk
    • 2 years ago
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    sorry got mad...

  26. PigPresident
    • 2 years ago
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    what?

  27. PigPresident
    • 2 years ago
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    ok

  28. Emllyk
    • 2 years ago
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    pig presedent i have no idea what u said about please excuse my dear aunt sally

  29. Emllyk
    • 2 years ago
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    Evaluate the expression, using the given value of the variable. z ÷ 2 – 4z + 3(z – 3) when z = 8 A. –17 B. –13 C. –7 D. –1 this one :D

  30. PigPresident
    • 2 years ago
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    just look at this site http://www.mathsisfun.com/operation-order-pemdas.html

  31. Emllyk
    • 2 years ago
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    i cant other sights are blocked.

  32. PigPresident
    • 2 years ago
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    oh like me too...my parents r like that

  33. PigPresident
    • 2 years ago
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    but this is school related

  34. Emllyk
    • 2 years ago
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    cant mom doesnt want me 2

  35. PigPresident
    • 2 years ago
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    ok

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spraguer (Moderator)
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