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11 October, 11:13

What is

-3 (x - 1) + 8 (x - 3) = 6x + 7 - 5x

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Answers (1)
  1. 11 October, 11:29
    0
    Add 6x and - 5x to get x.

    -3 (x-1) + 8 (x-3) = x+7

    Simplify each term.

    -3x+3+8x-24=x+7

    Add - 3x and 8x to get 5x.

    5x+3-24=x+7

    Add 3 and - 24 to get - 21.

    5x-21=x+7

    Since x contains the variable to solve for, move it to the left-hand side of the equation by subtracting x from both sides.

    5x-21-x=7

    Add 5x and - x to get 4x.

    4x-21=7

    Since - 21 does not contain the variable to solve for, move it to the right-hand side of the equation by adding 21 to both sides.

    4x=21+7

    Add 21 and 7 to get 28.

    4x=28

    Divide each term in the equation by 4.

    x=7

    x=7
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