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    2(6 - x) = 3(2x + 2)

    I got x = 0.75
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    Expand brackets: 12-2x=6x+6
    Solve as usual:
    12 = 8x - 6. (Add 2x to each side)
    18 = 8x. (Add 6 to each side)
    x = 18/8
    x = 2.25



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    In my answer book it says -3?
    (Original post by francesco_16)
    Expand brackets: 12-2x=6x+6
    Solve as usual:
    12 = 8x - 6. (Add 2x to each side)
    18 = 8x. (Add 6 to each side)
    x = 18/8
    x = 2.25


    Thanks but in my answer book it says -3 is x? Strange



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    (Original post by Jack_Tomlin)
    2(6 - x) = 3(2x + 2)

    I got x = 0.75
    1. Expand brackets
    Gives 12 - 2x = 6x +6

    2. Put constants on one side, variables on the other
    Gives 6 = 8x

    3. Divide by the variable coefficient
    Gives x = 0.75.

    The book is either wrong or you have misread the question.
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    Sorry you was right I read it wrong I must have been tired last night The question was actually 2(6 - x) = 3(2x + 12)
    (Original post by JLegion)
    1. Expand brackets
    Gives 12 - 2x = 6x +6

    2. Put constants on one side, variables on the other
    Gives 6 = 8x

    3. Divide by the variable coefficient
    Gives x = 0.75.

    The book is either wrong or you have misread the question.
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    Name:  image.jpg
Views: 66
Size:  503.1 KBIs this right now?
    (Original post by JLegion)
    1. Expand brackets
    Gives 12 - 2x = 6x +6

    2. Put constants on one side, variables on the other
    Gives 6 = 8x

    3. Divide by the variable coefficient
    Gives x = 0.75.

    The book is either wrong or you have misread the question.
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    (Original post by Jack_Tomlin)
    Name:  image.jpg
Views: 66
Size:  503.1 KBIs this right now?
    Perfect
 
 
 
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