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Question

Solve the following equation $$3(n-5)=-21$$

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Solution

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$$3(n-5)=-21 \Rightarrow n-5 = \dfrac{-21}{3} \Rightarrow n-5 = -7$$
$$\Rightarrow n = -7+5 \Rightarrow n =-2$$

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Solve the following equation $$3(n-5)=21$$

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Question 2(b)
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