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Solve 7n + 12 = 4n + 27, n=?
Solve 7n + 12 = 4n + 27, n=?
4
5
- 5
7
Explanation
Solve 7n + 12 = 4n + 27
= 7n - 4n + 12 - 27
= 3n + 12
= 3n - 15
15 = 3n
15/ 3 = n
n = 5