Answer:
6x + 4 = 40
Step-by-step explanation:
6 boxes
x = number of pencils per box
therefore Sam had 6x and received 4 more
explanation
5x +16
2 (x+6) + 3x + 4
Distribute the 2
2x+12 +3x +4
Combine like terms
2x+3x +12 +4
I know this question and answer
-4.5