Respuesta :

The answer is y= -x/3 if you need it in slope intercept form
1.You would use the distributive property and multiply everything in parentheses by the number outside of them. 
     8x+8y-4x+4y
2. Then you would combine like terms
    8x+-4x=4x
    8y+4y=12y
3. The answer is 4x+12y