Answer :

To find the integer that makes the subtraction sentence [tex]\( \square - 8 = -1 \)[/tex] true, let’s follow these steps:

1. Let the unknown integer be [tex]\( x \)[/tex]. This gives us the equation:
[tex]\[ x - 8 = -1 \][/tex]

2. To isolate [tex]\( x \)[/tex], we need to get rid of [tex]\(-8\)[/tex] on the left side. To do that, we can add 8 to both sides of the equation:
[tex]\[ x - 8 + 8 = -1 + 8 \][/tex]

3. Simplifying both sides, we have:
[tex]\[ x = -1 + 8 \][/tex]

4. Finally, performing the addition on the right gives:
[tex]\[ x = 7 \][/tex]

Therefore, the integer that makes the subtraction sentence [tex]\( \square - 8 = -1 \)[/tex] true is:
[tex]\[ \boxed{7} \][/tex]