To solve the equation \( 30k + 1 = 4 \), we need to isolate the variable \( k \).
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Subtract 1 from both sides:
\[ 30k = 4 - 1 \]
\[ 30k = 3 \]
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Now divide both sides by 30:
\[ k = \frac{3}{30} \]
\[ k = \frac{1}{10} \]
Thus, the solution for \( k \) is \( \frac{1}{10} \).