Question

3(n-5)=21 answer checked

Answer 1

3(n-5)=21
3n-15=21
3n=21+15
3n= 36
n=36/3
n=12....

Answer 2

$3(x - 5) = 21 \\ 3x - 15 = 21 \\ 3x = 21 + 15 = 36 \\ 3x = 36 \\ x = 36 \div 3 \\ x = 12$