Solve for x
x=0.4
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9x=1.2\times 3
Multiply both sides by 3.
9x=3.6
Multiply 1.2 and 3 to get 3.6.
x=\frac{3.6}{9}
Divide both sides by 9.
x=\frac{36}{90}
Expand \frac{3.6}{9} by multiplying both numerator and the denominator by 10.
x=\frac{2}{5}
Reduce the fraction \frac{36}{90} to lowest terms by extracting and canceling out 18.
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