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Haleyy_Bugg

  • 3 years ago

Simplify the following expression. 7x - 4y + 5z - 2x - 10y + z A) 5x - 14y + 6z B) 9x - 14y + 6z C) 5x - 6y + 6z D) 9x - 6y + 6z

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  1. Haleyy_Bugg
    • 3 years ago
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    @MATTW20

  2. MATTW20
    • 3 years ago
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    just combine like terms. meaning combine all the ones that have the same letter

  3. Haleyy_Bugg
    • 3 years ago
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    do you add to combine?

  4. MATTW20
    • 3 years ago
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    yes but make sure you take the sign of each into account for example in this problem it's -4y+(-10y)

  5. Haleyy_Bugg
    • 3 years ago
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    soooooooo 14?

  6. MATTW20
    • 3 years ago
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    well for that part it would be -14y can't forget about the sign or the y. but what about the rest

  7. Haleyy_Bugg
    • 3 years ago
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    So B?

  8. MATTW20
    • 3 years ago
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    and how did you arrive at that answer?

  9. Haleyy_Bugg
    • 3 years ago
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    I added the like terms together

  10. MATTW20
    • 3 years ago
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    but 7+(-2) doesn't equal 9 does it?

  11. Haleyy_Bugg
    • 3 years ago
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    no it is 5

  12. MATTW20
    • 3 years ago
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    and therefore b doesn't make sense does it. So what would the correct answer be

  13. Haleyy_Bugg
    • 3 years ago
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    A?

  14. MATTW20
    • 3 years ago
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    Well say it like you mean it don't question mark it :) A!!!! correct btw

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