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18 September, 10:58

Add: x 5 - 4x 4 + 7x 3 + 8, 9x 3 + 7x 2 - 10, and - 2x 5 + 7x 4 - 3x + 8.

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  1. 18 September, 12:22
    0
    the first one is 18 x

    the second one is 31x

    the third is 18x
  2. 18 September, 13:47
    0
    1) 5-4=1*4=4+7=11*3=33+8=41

    2) 9*3=27+7=34*2=68-10=58

    3) - 2*5=-10+7=-3*4=-12-3=-15+8=-7
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