Answer:it brainy
Step-by-step explanation:
Answer:
itooch 4th grade math.
hope it will help you..........
7x+2
Add x+x+2x+3x to get 7 xs or 7x. Then add -4+9-7+4 to get 2. Put 7x and 2 together to get 7x+2.
Hope it helps!