Solve for x
x=\frac{3}{10}=0.3
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20x=420-414
Subtract 414 from both sides.
20x=6
Subtract 414 from 420 to get 6.
x=\frac{6}{20}
Divide both sides by 20.
x=\frac{3}{10}
Reduce the fraction \frac{6}{20} to lowest terms by extracting and canceling out 2.
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