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27 January, 13:35

How do I solve

-4 (7a+5) = -160

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Answers (2)
  1. 27 January, 13:58
    0
    you distribute - 4 into 7a+5 making it - 28a-20=-160 add 20 on both sides - 160+20=-140 then divide - 28 to - 140 making a=5
  2. 27 January, 14:00
    0
    -4 (7a+5) = -160

    -28a-20=-160 multiply through by - 4

    -28a=-160+20 add 20 to both sides

    -28a=-140

    a=-140/-28 divide both sides by - 28

    a = 5
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