To solve the equation \( 50.3(n + 9.25) = -120.72 \), follow these steps:
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Distribute the \( 50.3 \) on the left side:
\[ 50.3n + 50.3 \times 9.25 = -120.72 \]
Calculate \( 50.3 \times 9.25 \):
\[ 50.3 \times 9.25 = 465.775 \]
So the equation becomes:
\[ 50.3n + 465.775 = -120.72 \]
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Isolate the \( n \) term by subtracting \( 465.775 \) from both sides:
\[ 50.3n = -120.72 - 465.775 \]
Calculate the right side:
\[ -120.72 - 465.775 = -586.495 \]
Now the equation is:
\[ 50.3n = -586.495 \]
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Solve for \( n \) by dividing both sides by \( 50.3 \):
\[ n = \frac{-586.495}{50.3} \]
Calculate the division:
\[ n \approx -11.65 \]
So, the solution for \( n \) is:
\[ \boxed{-11.65} \]