Solve for x
x=45
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0.8x=36
Combine x and -0.2x to get 0.8x.
x=\frac{36}{0.8}
Divide both sides by 0.8.
x=\frac{360}{8}
Expand \frac{36}{0.8} by multiplying both numerator and the denominator by 10.
x=45
Divide 360 by 8 to get 45.
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