To solve for \( x \) in terms of \( w \), \( y \), and \( z \) from the equation \( w = z - y + x \), we can rearrange the equation:
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Start with the original equation: \[ w = z - y + x \]
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Isolate \( x \) on one side by moving \( z \) and \( -y \) to the other side: \[ x = w - (z - y) \]
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Simplify the expression: \[ x = w - z + y \]
So, the final expression for \( x \) in terms of \( w \), \( y \), and \( z \) is: \[ \boxed{x = w - z + y} \]