To solve the equation \( x + 23 = 9 \), you can isolate \( x \) by subtracting 23 from both sides of the equation.
Here are the steps:
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Start with the equation: \[ x + 23 = 9 \]
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Subtract 23 from both sides: \[ x + 23 - 23 = 9 - 23 \] \[ x = 9 - 23 \] \[ x = -14 \]
So, the solution is \( x = -14 \).
The response that matches this solution is: −14 (negative 14).