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Hello!
First of all, let's rewrite the expression:
[tex]-4-(-7)[/tex]Solving it, we will have:
[tex]\begin{gathered} -4+7 \\ =3 \end{gathered}[/tex]Note that - (-7) is the same as +7.
Knowing it, we can say that the right alternative is:
D. The number that is 7 to the right of -4 on the number line.
Alternative D.