Solve for x
x=0.45
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2x=0.9
Combine 1.2x and 0.8x to get 2x.
x=\frac{0.9}{2}
Divide both sides by 2.
x=\frac{9}{20}
Expand \frac{0.9}{2} by multiplying both numerator and the denominator by 10.
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