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

n=-4

Step-by-step 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

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.