Answer:
8+2x and 3(x+4)-(4+x)
Explanation:
2(x+4)=2x+8 interchanged to 8+2x
3(x+4)-(4+x) simplified to
3x+12-4-x collect like terms together 3x-x+12-4=2x+8
5.2m questions
6.7m answers