To solve the compound inequality \( 4 + 54q < 83q + 42 \leq 54q + 16 \), we will break it into two parts and solve each part separately.
Part 1: Solve \( 4 + 54q < 83q + 42 \)
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Subtract \(54q\) from both sides:
\[ 4 < 83q - 54q + 42 \] \[ 4 < 29q + 42 \]
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Subtract \(42\) from both sides:
\[ 4 - 42 < 29q \] \[ -38 < 29q \]
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Divide by \(29\) (note that the direction of the inequality does not change because \(29\) is positive):
\[ -\frac{38}{29} < q \] We can write this as: \[ q > -\frac{38}{29} \]
Part 2: Solve \( 83q + 42 \leq 54q + 16 \)
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Subtract \(54q\) from both sides:
\[ 83q - 54q + 42 \leq 16 \] \[ 29q + 42 \leq 16 \]
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Subtract \(42\) from both sides:
\[ 29q \leq 16 - 42 \] \[ 29q \leq -26 \]
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Divide by \(29\):
\[ q \leq -\frac{26}{29} \]
Combine the Results
From Part 1, we have: \[ q > -\frac{38}{29} \]
From Part 2, we have: \[ q \leq -\frac{26}{29} \]
Thus, we combine the two results to get:
\[ -\frac{38}{29} < q \leq -\frac{26}{29} \]
Final Answer
\[ \boxed{-\frac{38}{29} < q \leq -\frac{26}{29}} \]