Respuesta :
Answer:
n = 5
Step-by-step explanation:
- Move all terms not containing n to the right side of the equation.
7n = 31 + 4
7n = 35
- Divide each term by 7 and simplify.
n = 5
i hope this helps :)
n=5. you can check your answer by doing 7(5)-4=31
7x5= 35
35-4=31
7x5= 35
35-4=31