Respuesta :

2x+3+x=18

2x+x= 3x

3x+3=18

18 - 3 = 15

3x = 15

x = 3

x=5
2x+3+x=18
Combine like terms
3x+3=18
Balance
3x+3=18
-3 -3
3x=15
__ __
3. 3
X= 5
ACCESS MORE
EDU ACCESS