Question

The solution of 5/7 n + 2 = 21/3 is ____________.

Answer 1

Answer:

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Step-by-step explanation:

$\frac{5}{7} n + 2 = \frac{21}{3} \\ = > \frac{5}{7} n + 2 = 7 \\ = > \frac{5}{7} n = 7 - 2 \\ = > \frac{5}{7} n = 5 \\ = >5 n = 35$

$= > n = \frac{35}{5} \\ = > n = 7$