To find the integer that makes the subtraction sentence true, we can rewrite the equation:
Let \( x \) be the unknown integer. The equation can be set up as follows:
\[ x - 4 = 8 \]
Now, we can solve for \( x \) by adding 4 to both sides:
\[ x = 8 + 4 \] \[ x = 12 \]
So, the integer that makes the sentence true is \( 12 \).