Question

x+5y add by 2x + 4y​

Answer 1

Step-by-step explanation:

(x+5y)+(2x+4y)= 3x+9y

Answer 2

Answer:

$\: \: \: \: (x + 5y) + (2x + 4y) \\ = x + 5y + 2x + 4y \\ = 3x + 9y \\ = 3(x + 3y)$