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19 July, 05:23

6=2 (w-4)

and different problem

(2n-8) (-2) = - 24

and this problem

(2z+6) (3) = 33 and this one last one - 4 (-2b-7) = 44

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Answers (1)
  1. 19 July, 05:35
    0
    1) 6=2 (w-4)

    Divide both sides by 2.

    3=w-4

    Add 4 to both sides.

    7=w

    2) (2n-8) (-2) = - 24

    Divide both sides by - 2.

    2n-8=12

    Add 8 to both sides.

    2n=20

    Divide both sides by 2.

    n=10

    3) (2z+6) (3) = 33

    Divide both sides by 3.

    2z+6=11

    Subtract 6 from both sides.

    2z=5

    Divide both sides by 2.

    z = 2.5

    4) - 4 (-2b-7) = 44

    Divide both sides by - 4.

    -2b-7=-11

    Add 7 to both sides.

    -2b=-4

    Divde both sides by - 2.

    b=2
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