To solve the equation \( 153x - 9 - 4 = 12 \), we first simplify the left side:
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Combine the constants: \[ 153x - 9 - 4 = 153x - 13 \]
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Set the equation equal to 12: \[ 153x - 13 = 12 \]
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Add 13 to both sides to isolate the term with \( x \): \[ 153x = 12 + 13 \] \[ 153x = 25 \]
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Divide both sides by 153 to solve for \( x \): \[ x = \frac{25}{153} \]
Thus, the value that completes the set of equations is: \[ x \neq \frac{25}{153} \] which implies \( x \neq \frac{25}{153} \) to avoid any undefined solutions or contradictions in your equations.