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9 September, 00:33

What is the sum of 5x*2 + 3x-7 and 12x+12

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  1. 9 September, 00:50
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    Answer:25x + 5

    Step-by-step explanation:

    (5x * 2 + 3x - 7) + (12x + 12)

    = (10x + 2x - 7) + (12x + 12)

    = (13x - 7) + (12x + 12)

    Expand the brackets

    = 13x - 7 + 12x + 12

    Join like terms together

    = 13x + 12x + 12 - 7

    = 25x + 5
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