Answer:
=12x+y
Step-by-step explanation:
Combine like terms
=5x+-3y+7x+4y
=(5x+7x)+(-3y+4y)
Hope this helps
Area= 48
If a square= 6.928 by 6.928
If Circle = Radius :3.909
If rectangle = 12 by 4
x=5t-a