Respuesta :

so you have to add 6n and 4n which equals to 10n
10n-7=23
add 7 to both sides
10n=30
divide both sides by 10
n= 3

Answer:

3

To find:

n

Step-by-step explanation:

бn - 7+ 4n = 23

10n-7 = 23

10n = 23 + 7

10n = 30

n = 30/10

n = 3

hope it helps you!!