Respuesta :

Answer:

-3

Step-by-step explanation:

2/5(w+5)=4/5

multiply 2 with w, and 2 with 5

2w/5+10/5=4/5

(2w+10)/5=4/5

cross multiply 4 with 5 and 5 with 2w+10

5(2w+10)=20

10w+50=20

10w=20-50

10w=-30

w=-30/10

w=-3