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26 August, 20:23

The length and width of a rectangle are 7 cm and (x-8) cm respectively. Find the value of x if the area with of the rectangle is 42 cm squared.

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  1. 26 August, 21:49
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    to find the area of a rectangle is LxW=A

    plug in the given numbers you have

    L = 7

    W = x-8

    A = 42

    7 * x-8 = 42

    7x-56 = 42

    solve for X
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