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]