Solve for x
x=0.4
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x=\frac{0.18}{0.45}
Divide both sides by 0.45.
x=\frac{18}{45}
Expand \frac{0.18}{0.45} by multiplying both numerator and the denominator by 100.
x=\frac{2}{5}
Reduce the fraction \frac{18}{45} to lowest terms by extracting and canceling out 9.
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