Respuesta :

Step-by-step explanation:

4+16x=80

16x=80-4

16x=76

x=76/16

x=19/4

x=4.75

Answer:

4.75

Step-by-step explanation:

4+16x=80°

-4          -4

16x  =  76°

___     ___

16        16

x=4.75