To solve the equation \(0.2x - 2.15 = -8.27\), follow these steps:
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Add 2.15 to both sides to isolate the term with \(x\):
\[ 0.2x - 2.15 + 2.15 = -8.27 + 2.15 \]
This simplifies to:
\[ 0.2x = -6.12 \]
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Divide both sides by 0.2 to solve for \(x\):
\[ x = \frac{-6.12}{0.2} \]
Performing the division:
\[ x = -30.6 \]
Thus, the solution to the equation is \( \text{-30.6} \).