Answer:
=12x+y
Step-by-step explanation:
Combine like terms
=5x+-3y+7x+4y
=(5x+7x)+(-3y+4y)
=12x+y
Answer:
12x + y
Step-by-step explanation:
(5x - 3y) + (7x + 4y)
-you need to distribute a 1 from the 1(7x + 4y) and drop the 5x - 3y
5x - 3y + 7x + 4y
- combine like terms
5x + 7x = 12x & -3y + 4y = 1y or just y
12x + y
