To determine which equation has a different value of \( x \), we can solve each equation for \( x \):
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Equation: \( x + \frac{9}{8} = \frac{7}{4} \)
Subtract \( \frac{9}{8} \) from both sides: \[ x = \frac{7}{4} - \frac{9}{8} \] Convert \( \frac{7}{4} \) to eighths: \[ \frac{7}{4} = \frac{14}{8} \] Thus, \[ x = \frac{14}{8} - \frac{9}{8} = \frac{5}{8} \]
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Equation: \( x - 0.025 = 0.6 \)
Add \( 0.025 \) to both sides: \[ x = 0.6 + 0.025 = 0.625 \]
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Equation: \( x - \frac{7}{8} = -\frac{3}{2} \)
Add \( \frac{7}{8} \) to both sides: \[ x = -\frac{3}{2} + \frac{7}{8} \] Convert \( -\frac{3}{2} \) to eighths: \[ -\frac{3}{2} = -\frac{12}{8} \] Thus, \[ x = -\frac{12}{8} + \frac{7}{8} = -\frac{5}{8} \]
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Equation: \( x + 0.875 = 1.5 \)
Subtract \( 0.875 \) from both sides: \[ x = 1.5 - 0.875 = 0.625 \]
Now, we summarize the values of \( x \) obtained from each equation:
- \( x = \frac{5}{8} \) (Equation 1)
- \( x = 0.625 \) (Equation 2)
- \( x = -\frac{5}{8} \) (Equation 3)
- \( x = 0.625 \) (Equation 4)
From these results, we see that Equation 3 has a different value of \( x \) (which is \( -\frac{5}{8} \)) compared to the values from Equations 1, 2, and 4.
So, the answer is Equation 3: \( x - \frac{7}{8} = -\frac{3}{2} \) has a different value of \( x \).