Respuesta :

Answer:

w=28

Step-by-step explanation:

multiply both side by 4:

[tex]4*(\frac{w}{4} -4)=3*4\\4*\frac{w}{4}-16=12\\w-16=12[/tex]now add  +16 in both side:

[tex]16+w-16=12+16\\w=28[/tex]