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19 May, 08:10

Building A is 255 meters taller than building B. If the height of building A is subtracted from twice the height of building B, the result is 234 meters. How tall is each

skyscraper?

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  1. 19 May, 08:29
    0
    A = 744 meters B = 489 meters

    Step-by-step explanation:

    A = B + 255

    2B - A = 234

    -2B - 2B Subract the - 2B from both sides

    -A = - 2B + 234

    A = 2B - 234 Divide by - 1 to get A alone

    B + 255 = 2B - 234 Set both equations equal to each other

    - B - B

    255 = B - 234

    +234 + 234

    489 = B

    Plug 234 in for B in the original equations

    A = 489 + 255

    A = 744
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