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anonymous

  • one year ago

Simplify the following expression: 2x − 2y + 5z − 2x − y + 3z

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  1. CoconutJJ
    • one year ago
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    Combine Like Terms: 2x-2x-2y-y+5z+3z

  2. CoconutJJ
    • one year ago
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    Can you do it now?

  3. anonymous
    • one year ago
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    So basically what you're saying is do such like put together (02x-2x)(-2y-y)(+5z+3z)?

  4. CoconutJJ
    • one year ago
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    Yes...

  5. CoconutJJ
    • one year ago
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    now what is 2x -2x

  6. anonymous
    • one year ago
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    4x

  7. CoconutJJ
    • one year ago
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    umm. (2 x A Number)-(2 x The Same Number) = ?

  8. anonymous
    • one year ago
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    Sorry, I'm relearning all of this as I go along, bad lifestyle and such, never went to class ,but taking math classes online to try and learn it all again. So, 2x-2x=1x correct

  9. anonymous
    • one year ago
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    Or just x

  10. CoconutJJ
    • one year ago
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    no... let x=3 2(3) - 2(3) = ?

  11. anonymous
    • one year ago
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    Erm, I've honestly no clue. Because when I see the subraction symbol, I would think you're subtracting it, and if they're the same numbers, it'd be 0.

  12. CoconutJJ
    • one year ago
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    YESSSS !!! FINALLLYY ITS ZERRRO !

  13. CoconutJJ
    • one year ago
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    NOW ... What is -2y-y

  14. anonymous
    • one year ago
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    I want to say -1y..

  15. CoconutJJ
    • one year ago
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    no.... if you owe me 2 dollars and you borrow another 1 dollar. Do you owe me 1 dollar in total now ?

  16. anonymous
    • one year ago
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    Ahhh, -3

  17. CoconutJJ
    • one year ago
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    yess. so -2y-y = -3y. You understand?

  18. anonymous
    • one year ago
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    So far actually yes

  19. CoconutJJ
    • one year ago
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    Now.. What is 5z+3z. Use the same analogy

  20. anonymous
    • one year ago
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    8z

  21. anonymous
    • one year ago
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    x − 3y + 8z?

  22. CoconutJJ
    • one year ago
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    WHAT HAPPENED TO ZERO !

  23. anonymous
    • one year ago
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    0x− 3y + 8z ?

  24. CoconutJJ
    • one year ago
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    Yes, but 0 times any number is always zero thus 0x = 0 --> 0-3y+8z --> -3y+8z

  25. anonymous
    • one year ago
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    Ohhhhhhhhhhhhhhhhhh.... Shoot, I get it now!

  26. anonymous
    • one year ago
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    Well awesome, Thanks Coconut!

  27. CoconutJJ
    • one year ago
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    YOU WELCOME

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