Question

Solve:-
i) 3[n-5]=21​

Answer 1

Solution:-

3[n - 5] = 21

3n - 15 = 21

3n = 21 + 15

3n = 36

n = $\frac{36}{3}$

n = 12

Answer 2

Answer:

12

Step-by-step explanation:

3(n-5)=21

3n-15=21

3n=21+15

3n=36

n=36/3

n=12

hope it helps you