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23 September, 13:09

Solve the equation below for x

3 (x+2) = 8 (x - 1) + 5

explain it using any of these vocab words:

polynomial expressions

graphing polynomial expressions

dividing polynomials

solving polynomial equations

rational functions

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Answers (1)
  1. 23 September, 13:20
    0
    Answer: x = 9/5

    Step-by-step explanation:

    You want to apply the distributive property to both of these "polynomial expressions." You get 3x + 6 = 8x - 8 + 5

    Subtract 5 from both polynomials to get 3x + 1 = 8x - 8.

    Subtract 1 from both polynomials to get 3x = 8x - 9

    Subtract 8x from both polynomials to get - 5x = - 9

    Finally divide both polynomials by - 5 to get x = 9/5
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