7n-2=6n-2n

7n - 2 = 6n - 2n

 

First, let's collect like terms on the right-hand-side:

7n - 2 = 4n.

 

Now, we can subtract 7n from both sides:

-2 = 4n - 7n

-2 = -3n.

 

Finally, we divide both sides by -3:

-2/-3 = n.

 

n = 2/3.