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iloveboys

Simplify the following expression. 2x - 2y + 5z - 2x - y + 3z Answer 2x - 2y + 8z -3y + 8z x - 3y + 8z 3y + 8z

  • 2 years ago
  • 2 years ago

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  1. JamesJ
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    collect all the x terms; and all the y terms; and all the z terms. Then simplify

    • 2 years ago
  2. JamesJ
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    2x - 2y + 5z - 2x - y + 3z = (2x - 2x) + (-2y - y) + (5z + 3z) = ...

    • 2 years ago
  3. iloveboys
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    C?

    • 2 years ago
  4. JamesJ
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    (2x - 2x) + (-2y - y) + (5z + 3z) what is 2x - 2x equal to?

    • 2 years ago
  5. iloveboys
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    4x

    • 2 years ago
  6. JamesJ
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    No. 2x MINUS 2x = ...

    • 2 years ago
  7. iloveboys
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    its d wow.. well im an idiot. thanks james

    • 2 years ago
  8. JamesJ
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    No, it's not d. Figure it out explicitly: 2x - 2y + 5z - 2x - y + 3z = (2x - 2x) + (-2y - y) + (5z + 3z) = ...

    • 2 years ago
  9. iloveboys
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    im a bigger idiot.. lol. idontknow

    • 2 years ago
  10. JamesJ
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    2x - 2y + 5z - 2x - y + 3z = (2x - 2x) + (-2y - y) + (5z + 3z) = ... Figure out each piece in turn 2x - 2x = ... what? -2y - y = ... what? 5z + 3z = ... what?

    • 2 years ago
  11. iloveboys
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    x-3y+8z

    • 2 years ago
  12. iloveboys
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    oh

    • 2 years ago
  13. JamesJ
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    2x - 2x = 0 -2y - y = -3y 5z + 3z = 8z Hence 2x - 2y + 5z - 2x - y + 3z = (2x - 2x) + (-2y - y) + (5z + 3z) = ...what?

    • 2 years ago
  14. iloveboys
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    I dont know then. gosh

    • 2 years ago
  15. JamesJ
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    C'mon. This is now a reading exercise. 2x - 2x = 0 -2y - y = -3y 5z + 3z = 8z Hence 2x - 2y + 5z - 2x - y + 3z = (2x - 2x) + (-2y - y) + (5z + 3z) = 0 + what + what

    • 2 years ago
  16. iloveboys
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    3y+8z

    • 2 years ago
  17. iloveboys
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    witch i already said and u said no.. now im just confused.. hero! help

    • 2 years ago
  18. JamesJ
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    Given that: 2x - 2x = 0 -2y - y = -3y 5z + 3z = 8z it follows that ... 2x - 2y + 5z - 2x - y + 3z = (2x - 2x) + (-2y - y) + (5z + 3z) = 0 + -3y + 8z Hence the final answer is -3y + 8z.

    • 2 years ago
  19. JamesJ
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    That is 2x - 2y + 5z - 2x - y + 3z = -3y + 8z

    • 2 years ago
  20. iloveboys
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    because its negative.. omg. I would have failed my test already.lol. thanks james

    • 2 years ago
  21. JamesJ
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    I recommend you take a blank piece of paper. Write down the original expression and see if you obtain the answer again without looking at this web site. This is how I learnt this stuff. Repetition.

    • 2 years ago
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