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20 March, 03:49

Explain how to isolate the variable in the equation - 2/3n + 7 = 15

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  1. 20 March, 06:13
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    n = - 12

    Step-by-step explanation:

    (-2/3) n + 7 = 15

    (-2/3) n+7-7 = 15-7 Subtract by 7 on both sides

    (-2/3) n = 8 Multiply by the reciprocal of the fraction, which is

    (-2/3) n * (-3/2) = 8 (-3/2) This makes it so you get n * 1 and isolates n.

    n = - 24/2 = - 12
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