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24 February, 02:21

1) 7x - 3 (x-4) = 8 2) 4x-8+2x=40 3) 6x - 6+11=53 4) 17=x-3x-3

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  1. 24 February, 04:15
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    1.) 7x - 3 (x - 4) = 8 Multiply/distribute 3 into (x - 4)

    7x - 3x + 12 = 8

    4x + 12 = 8 Subtract 12 on both sides

    4x = - 4 Divide 4 on both sides

    x = - 1

    2.) 4x - 8 + 2x = 40

    6x - 8 = 40 Add 8 on both sides

    6x = 48 Divide 6 on both sides

    x = 8

    3.) 6x - 6 + 11 = 53

    6x + 5 = 53 Subtract 5 on both sides

    6x = 48 Divide 6 on both sides

    x = 8

    4.) 17 = x - 3x - 3

    17 = - 2x - 3 Add 3 on both sides

    20 = - 2x Divide - 2 on both sides

    -10 = x
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