Solve the equations:

(6) 7n + 5 = 19

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Solution

7n + 5 = 19
Subtracting 5 from both sides, we obtain:
7n + 5 – 5 = 19 – 5
$\Rightarrow$ 7n = 14
Dividing both sides by 7, we obtain:
$\frac{7 n}{7} = \frac{14}{7} \Rightarrow n = 2$

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