Solve for x
x = \frac{18}{5} = 3\frac{3}{5} = 3.6
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400x=1440
Multiply 20 and 20 to get 400.
x=\frac{1440}{400}
Divide both sides by 400.
x=\frac{18}{5}
Reduce the fraction \frac{1440}{400} to lowest terms by extracting and canceling out 80.
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