Respuesta :

Equation A:

3 ( x + 2) = 18

Equation B:

3x + 6 = 18

To get equation B from equation A, we will open the parenthesis by expanding the equation A. That is, 3 enters the bracket to multiply both x and 2 individually.

3 ( x + 2) = 18

3x + 6 = 18