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2 May, 00:55

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

what is x

2) 5 (x - 1) - 6x = - 11x

what is x

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Answers (1)
  1. 2 May, 01:19
    0
    x = 11

    1/2 = x

    Step-by-step explanation:

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

    Distribute

    2x-10+7 = x+8

    Combine like terms

    2x - 3 = x+8

    Subtract x from each side

    2x-x-3 = x+8-8

    x - 3 = 8

    Add 3 to each side

    x-3+3 = 8+3

    x = 11

    2) 5 (x - 1) - 6x = - 11x

    Distribute

    5x-5-6x = - 11x

    Combine like terms

    -x-5 = - 11

    Add x to each side

    -x+x - 5 = - 11x + x

    -5 = - 10x

    Divide each side by - 10

    -5/-10 = - 10x/-10

    1/2 = x
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