Answer: 12x + 4y
Step-by-step explanation:
Answer:
12x + 4y
Add all the x together, and then y. Giving you (7x + 5x) + (3y + 1y) = 12x + 4y
Hope that helped
x=<u>-2y+70</u>
5
y=<u>-5x+70 </u>
2
43.48