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8 July, 05:04

An expression is written as m-5 (m+3) + 7m. What is the value of the expression when m=x+1?

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  1. 8 July, 05:09
    0
    3x-12

    Step-by-step explanation:

    m-5 (m+3) + 7m

    m-5m-15+7m=3m-15

    For m=x+1

    3 (x+1) - 15=3x+3-15=3x-12
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