To solve the equation \( 3x - 7 = 2x + 5 \), we can follow these steps:
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Isolate \( x \) on one side: \[ 3x - 2x = 5 + 7 \]
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Simplify both sides: \[ x = 12 \]
So the solution is \( x = 12 \).
Therefore, the correct response is: x=12 (or x is equal to 12).