Answer:
<em>There are infinitely many solutions.</em>
Step-by-step explanation:
<em>While solving a system of equations, if we get a true statement like 1=1, then there will be "infinitely many solutions" and if we get a false statement like 1=2, then there will be "no solution". </em>
Here the statement is 4=4, <u>which is a true statement</u>.
So, there are infinitely many solutions.