Solve for y
y=\frac{1}{20}=0.05
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200y=10
Add 10 to both sides. Anything plus zero gives itself.
y=\frac{10}{200}
Divide both sides by 200.
y=\frac{1}{20}
Reduce the fraction \frac{10}{200} to lowest terms by extracting and canceling out 10.
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