Final answer:
To solve the equation 4y - 9 + y = 6, combine like terms and isolate the variable. The solution to the equation is y = 3.
Step-by-step explanation:
To solve the equation 4y - 9 + y = 6, we can combine like terms on the left side of the equation. We have 4y + y - 9 = 6. Combining the y terms, we get 5y - 9 = 6.
Next, we can isolate the variable by adding 9 to both sides of the equation, resulting in 5y = 15. Finally, we can solve for y by dividing both sides by 5, giving us y = 3. Therefore, the solution to the equation is y = 3.