Question

Sole the equation 6n + 9 = -3n - 21 - 6 for n

Answer 1

n is -4

`6n + 9 = - 3n - 21 - 6 \\ 9n = - 36 \\ n = ( - 36)/(9) = - 4`



good luck

Answer 2

n=-4

Explanation:

6n + 9 = -3n - 21 - 6

Add 3n to each side

6n+3n + 9 = -3n+3n - 21 - 6

9n+9 = -27

Subtract 9 from each side

9n+9-9 = -27-9

9n = -36

Divide each side by 9

9n/9 = -36/9

n = -4