Answer:
24
Step-by-step explanation:
You input will always be your x so you just substitute x with 10 and simplify. Which is 30 minus 6, thus 24. :)
Simplified expression is 11y² + 6x - 13
5y² + 3y - 13 + 6x - 3y + 6y² = 11y² + 6x - 13