8-(4x+7)=5(x+6) ( I think the 7 might be m idk)

Question

8-(4x+7)=5(x+6) ( I think the 7 might be m idk)

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Thanh Thu 3 years 2021-07-24T02:36:12+00:00 2 Answers 11 views 0

Answers ( )

  1. Nem
    0
    2021-07-24T02:37:35+00:00
    Reply

    Answer:

    its 3 🙂

    Step-by-step explanation:

    Simplifying

    8 + -1(4x + 7) = 5(x + 6) + -2

    Reorder the terms:

    8 + -1(7 + 4x) = 5(x + 6) + -2

    8 + (7 * -1 + 4x * -1) = 5(x + 6) + -2

    8 + (-7 + -4x) = 5(x + 6) + -2

    Combine like terms: 8 + -7 = 1

    1 + -4x = 5(x + 6) + -2

    Reorder the terms:

    1 + -4x = 5(6 + x) + -2

    1 + -4x = (6 * 5 + x * 5) + -2

    1 + -4x = (30 + 5x) + -2

    Reorder the terms:

    1 + -4x = 30 + -2 + 5x

    Combine like terms: 30 + -2 = 28

    1 + -4x = 28 + 5x

    Solving

    1 + -4x = 28 + 5x

    Solving for variable ‘x’.

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

    Add ‘-5x’ to each side of the equation.

    1 + -4x + -5x = 28 + 5x + -5x

    Combine like terms: -4x + -5x = -9x

    1 + -9x = 28 + 5x + -5x

    Combine like terms: 5x + -5x = 0

    1 + -9x = 28 + 0

    1 + -9x = 28

    Add ‘-1’ to each side of the equation.

    1 + -1 + -9x = 28 + -1

    Combine like terms: 1 + -1 = 0

    0 + -9x = 28 + -1

    -9x = 28 + -1

    Combine like terms: 28 + -1 = 27

    -9x = 27

    Divide each side by ‘-9’.

    x = -3

    Simplifying

    x = -3

  2. thucuc
    0
    2021-07-24T02:37:46+00:00
    Reply

    Answer:

    x=\frac{-29}{9} \\x=-3.2\\x=-3\frac{2}{9}

    1st answer: Exact Form

    2nd answer: Decimal Form

    3rd answer: Mixed Number Form

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