To solve the equation \(-13 - x = -4\), you can isolate \(x\) by following these steps:
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Add 13 to both sides of the equation:
\[ -13 - x + 13 = -4 + 13 \]
This simplifies to:
\[ -x = 9 \]
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Now, multiply both sides by -1 to solve for \(x\):
\[ x = -9 \]
So, the solution is:
\[ x = -9 \]