Given:
The given equation is,
[tex](?)x-7=-4x-7[/tex]
Required:
To find the missing number.
Answer:
We have the given equation,
[tex](?)x-7=-4x-7[/tex]
Putting (-4) in place of (?), we get,
[tex]\begin{gathered} (-4)x-7=-4x-7 \\ \Rightarrow-4x-7=-4x-7 \end{gathered}[/tex]
This shows that the given equation has infinitely many solutions.
Final Answer:
The missing number is -4.
