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11 March, 13:47

Find the difference of (2n-9) - 5 (-2.4n+4)

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  1. 11 March, 13:58
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    Answer: 2.071428571

    Step-by-step explanation:Simplifying

    (2n + - 9) + - 5 (-2.4n + 4) = 0

    Reorder the terms:

    (-9 + 2n) + - 5 (-2.4n + 4) = 0

    Remove parenthesis around (-9 + 2n)

    -9 + 2n + - 5 (-2.4n + 4) = 0

    Reorder the terms:

    -9 + 2n + - 5 (4 + - 2.4n) = 0

    -9 + 2n + (4 * - 5 + - 2.4n * - 5) = 0

    -9 + 2n + (-20 + 12n) = 0

    Reorder the terms:

    -9 + - 20 + 2n + 12n = 0

    Combine like terms: - 9 + - 20 = - 29

    -29 + 2n + 12n = 0

    Combine like terms: 2n + 12n = 14n

    -29 + 14n = 0

    Solving

    -29 + 14n = 0

    Solving for variable 'n'.

    Move all terms containing n to the left, all other terms to the right.

    Add '29' to each side of the equation.

    -29 + 29 + 14n = 0 + 29

    Combine like terms: - 29 + 29 = 0

    0 + 14n = 0 + 29

    14n = 0 + 29

    Combine like terms: 0 + 29 = 29

    14n = 29

    Divide each side by '14'.

    n = 2.071428571

    Simplifying

    n = 2.071428571
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