Question

Hello I need help with this homework problem please thank you

Answer 1

Given:

The given equation is,

`(?)x-7=-4x-7`

Required:

To find the missing number.

Answer:

We have the given equation,

`(?)x-7=-4x-7`

Putting (-4) in place of (?), we get,

`\begin{gathered} (-4)x-7=-4x-7 \\ \Rightarrow-4x-7=-4x-7 \end{gathered}`

This shows that the given equation has infinitely many solutions.

Final Answer:

The missing number is -4.