To solve the equation \( 82.78(p + 11.892) = 72.8464 \) for \( p \), follow these steps:
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Divide both sides by 82.78 to isolate \( p + 11.892 \): \[ p + 11.892 = \frac{72.8464}{82.78} \]
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Calculate the right-hand side: \[ p + 11.892 = 0.8802 \quad (\text{approximately, do not round yet}) \]
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Subtract 11.892 from both sides: \[ p = 0.8802 - 11.892 \]
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Calculate the final value of \( p \): \[ p = -11.0118 \quad (\text{approximately, do not round yet}) \]
Thus, the solution for \( p \) is: \[ p = -11.0118 \]
If you keep all decimal places, it would be: \[ p = -11.011785489999999 \]
So, the final answer is: \[ p = -11.011785489999999 \]