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To solve the equation 0.2x - 2.15 = -8.27, you can start by adding 2.15 to both sides to isolate the variable:
0.2x - 2.15 + 2.15 = -8.27 + 2.15
0.2x = -6.12
Next, divide both sides of the equation by 0.2 to solve for x:
(0.2x) / 0.2 = -6.12 / 0.2
x = -30.6
Therefore, the solution to the equation is x = -30.6.