Solve for x
x=1.05
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x=\frac{4.2}{4}
Divide both sides by 4.
x=\frac{42}{40}
Expand \frac{4.2}{4} by multiplying both numerator and the denominator by 10.
x=\frac{21}{20}
Reduce the fraction \frac{42}{40} to lowest terms by extracting and canceling out 2.
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