Question

2n+7=21





please help maths​

Answer 1

Answer:

2n+7=21

2n=21-7

2n=14

n=14/2

n=7 ans.......

Step-by-step explanation:

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Answer 2

$2n + 7 = 21 \\ \\ = > 2n = 21 - 7 \\ \\ = > 2n = 14 \\ \\ = > n = \frac{14}{2} \\ \\ \: \: \: \: \: \: \: \: \: = 7$