Answer:
[tex]4x + 4 = 4x + 4[/tex]
Step-by-step explanation:
Given
[tex]4x + 4 = 4x + [][/tex]
Required
Fill in the gap to get an infinitely many solutions
Let the gap be y
[tex]4x + 4 = 4x + y[/tex]
Collect Like Terms
[tex]y = 4x - 4x + 4[/tex]
[tex]y = 4[/tex]
The complete equation is: [tex]4x + 4 = 4x + 4[/tex]