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11 November, 21:58

Z = 3 - 2x + 4 (z - 8) when z = 18

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Answers (2)
  1. 11 November, 22:18
    0
    25/2

    Step-by-step explanation:

    Let's solve your equation step-by-step.

    18=3-2x+4 (18-8)

    Step 1: Simplify both sides of the equation.

    18=3-2x+4 (18-8)

    18=3+-2x+40

    18 = (-2x) + (3+40) (Combine Like Terms)

    18=-2x+43

    18=-2x+43

    Step 2: Flip the equation.

    -2x+43=18

    Step 3: Subtract 43 from both sides.

    -2x+43-43=18-43

    -2x=-25

    Step 4: Divide both sides by - 2.

    -2x

    -2

    =

    -25

    -2

    x=

    25

    2

    Answer:

    x=

    25

    2
  2. 11 November, 22:25
    0
    x = 12.5

    Step-by-step explanation:

    z = 3 - 2x + 4 (z - 8), z = 18

    18 = 3 - 2x + 4 (18 - 8)

    18 = 3 - 2x + 4*10

    18 = 3 - 2x + 40

    2x = 3+40 - 18

    2x = 25

    x = 12.5
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