Respuesta :

Answer:

your answer would be

Step-by-step explanation:be (0.6x-0.8y)

Answer:

16.6 x − 14.8 y

Step-by-step explanation:

10 ( 0.4 x + 0.2 y ) + 21 ( 0.6 x − 0.8 y )  :

Simplify each term.  

4 x + 2y + 12.6 x − 16.8 y

Simplify by adding terms.

Add 4 x  and  12.6 x .

16.6 x + 2 y − 16.8 y

Subtract 16.8 y  from  2 y .

16.6 x − 14.8 y.