Respuesta :

7n+8=6n+4
     -4       -4
7n+4= 6n
     -4        -4
7n=6n-4
-6n  -6n
n= -4
Simplifying
7n + 8 = 6n + 4

Reorder the terms:
8 + 7n = 6n + 4

Reorder the terms:
8 + 7n = 4 + 6n

Solving
8 + 7n = 4 + 6n
Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right. Add '-6n' to each side of the equation.
8 + 7n + -6n = 4 + 6n + -6n

Combine like terms:
7n + -6n = 1n 8 + 1n = 4 + 6n + -6n

Combine like terms:
6n + -6n = 0 8 + 1n = 4 + 0 8 + 1n = 4

Add '-8' to each side of the equation.
8 + -8 + 1n = 4 + -8

Combine like terms:
8 + -8 = 0 0 + 1n = 4 + -8 1n = 4 + -8

Combine like terms:
4 + -8 = -4 1n = -4

Divide each side by '1'.
n = -4

Simplifying

 n = -4