(2 points) Fill in the blanks with the correct coefficients when simplifying the expression. (18x+9y)+(2x+6y) %C2%A0x+ y

Answer 1

To simplify the expression $(18x+9y)+(2x+6y)$, we first combine like terms.

1. Combine the $x$ terms:

   • $18x+2x=20x$

2. Combine the $y$ terms:

   • $9y+6y=15y$

Putting it all together, we get: $$20x+15y$$

So, when simplified, the expression is $20x+15y$.

Thus, the coefficients are:

• For $x$, the coefficient is 20.
• For $y$, the coefficient is 15.

Final answer: $$20x+15y$$