Answer:
(6y+17)
Step-by-step explanation:
1. Subtract 4y from 10y to get 6y
2. 9 is positive and 8 is negative but to subtract a negative is basically adding so you would add 9 to 8
3. You final equation would be (6y+17)
4. (10y+9)-(4y-8)= (6y+17)
Answer:
Step-by-step explanation:
[tex](10y+9)-(4y-8)\\\\=10y+9-4y-(-8)\\\\=10y+9-4y+8\qquad\text{combine like terms}\\\\=(10y-4y)+(9+8)\\\\=6y+17[/tex]
