Answer
$x=-4$
Work Step by Step
Subtract 0.1 to both sides to have:
$\\\\0.3x=0.27x-0.12$
$\\\\\\$Subtract $0.27x$ to both sides to have:
$\\\\0.03x=-0.12$
$\\\\\\$Divide $0.03$ to both sides to have:
$\\\\x=-4$
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