Respuesta :

swagadamas

Answer:

n=4

Step-by-step explanation:

(18-n)/2=n + 3

Multiply sides by 2

18-n=2n+6

add n +n  +n

18=3n+6

-6        -6

subtract 6 from both sides

12=3n  to isolate n dived 3

/3  /3

n=4

awill9581

Answer:

n= -5

Step-by-explanation:

The options were

A. -14

B. -5

C. 20

D. 29

If you try each of them you will see that

-5+17=12

and 12/2=6

therefore: n= -5