To solve the equation \( x - 12 = -13 \), you need to isolate \( x \).
Here’s how to do it step by step:
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Add 12 to both sides of the equation to get rid of the -12 on the left side:
\[ x - 12 + 12 = -13 + 12 \]
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This simplifies to:
\[ x = -1 \]
So, the solution is:
\[ x = -1 \]