Respuesta :

Answer:

2.5x

Step-by-step explanation:

-5x+3*2.5x

Multiply

-5x+7.5x

Combine like terms

x(-5+7.5)

2.5x

Answer:

2.5x

Step-by-step explanation:

3*2.5x=7.5x

-5x+7.5x=2.5x

hope this helps!