19
Step-by-step explanation:
when we add 9 and 10 we will get sum 19
Answer:
5x +11y +10
7x+11y+9-2x+1
Combine like terms
7x-2x + 11y +9 +1
A squared+B squared=Csquared
Use Pythagorean theorem.
- ( x + 6) I think