Type the integer that makes the following addition sentence true:

Question

+ 1 = –9

Answer 1

To find the integer that makes the addition sentence true, we'll set up the equation:

Let \( x \) be the integer we want to find. The equation becomes:

\[ x + 1 = -9 \]

To solve for \( x \), subtract 1 from both sides:

\[ x = -9 - 1 \]

This simplifies to:

\[ x = -10 \]

Thus, the integer that makes the addition sentence true is \( -10 \).