A girl scout has (5x+18)
boxes of cookies and sells
(3x+12) of them. Write an
expression to represent the
amount of boxes she has
left.

Respuesta :

Step-by-step explanation:

(5x+18) - (3x+12)

5x+18=3x+12

5x-3x=2x

18-12=6

2x+6