Respuesta :

Combine like terms: 16x + -4x = 12x 12x = 48
Solving 12x = 48
Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right.
Divide each side by '12'. x = 4
Simplifying x = 4
16x - 4x = 48
12x = 48
x = 48/12
x = 4