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1 November, 11:22

How to find x?

-x+7=-4x-20

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Answers (1)
  1. 1 November, 11:50
    0
    x = - 9

    Step-by-step explanation:

    -x+7 = - 4x-20

    Move the variable to the left side and change its sign.

    -x+4x+7=-20

    Move constant to the right side and change its sign.

    -x=4x = - 20-7

    Collect the like terms.

    3x = - 27

    Divide both sides of the equation by 3.

    x = - 9
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