Question

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Answer 1

Answer:

$\frac{2n}{3} + 1 = \frac{7n}{15} + 3 \\ \\ \frac{2n}{3} - \frac{7n}{15 } = 3 - 1 \\ \\ \frac{2n - 7n}{45} = 2 \\ \\ \frac{ - 5n}{45} = 2 \\ \frac{n}{ - 9} = 2$

$n = 2 \times - 9 \\ n = - 18$