To subtract \(-\frac{7}{4}\) from \(-\frac{1}{2}x\), we need to express everything with a common denominator.
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Rewrite \(-\frac{1}{2}x\) with a denominator of 4: \[ -\frac{1}{2}x = -\frac{2}{4}x \]
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Now perform the subtraction: \[ -\frac{2}{4}x - \left(-\frac{7}{4}\right) = -\frac{2}{4}x + \frac{7}{4} \]
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Combine the terms: \[ = \frac{7}{4} - \frac{2}{4}x \]
So, the final answer is: \[ \frac{7}{4} - \frac{2}{4}x \] or simply, \[ \frac{7}{4} - \frac{1}{2}x \quad \textrm{(since \(-\frac{2}{4} = -\frac{1}{2}\))} \]