6x+8-2x
2(2x+4)
4(x+2)
3x+9+x-1
Hope this helps!
Explanation:
4x+8
6x+8-2x=4x+8 yes
4(x+8)=4x+32 no
2(2x+4)=4x+8 yes
4x+2 no
Answers: 6x+8-2x( first choice) , 2(2x+4) ( third choice)
9.4m questions
12.2m answers