Respuesta :

Answer:

Infinite solutions

Step-by-step explanation:

X + y =4  

3x + 3y =12

Multiply the first equation by -3 to eliminate x

-3(X + y =4)

-3x-3y  =-12

Now add this to the second equation

-3x-3y  =-12

3x + 3y =12

----------------------

0=0

This is always true.  That means there are infinite solutions.