Solve for x
x = \frac{318000}{11} = 28909\frac{1}{11} \approx 28909.090909091
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0.115x+1200-0.06x=2790
Use the distributive property to multiply 0.06 by 20000-x.
0.055x+1200=2790
Combine 0.115x and -0.06x to get 0.055x.
0.055x=2790-1200
Subtract 1200 from both sides.
0.055x=1590
Subtract 1200 from 2790 to get 1590.
x=\frac{1590}{0.055}
Divide both sides by 0.055.
x=\frac{1590000}{55}
Expand \frac{1590}{0.055} by multiplying both numerator and the denominator by 1000.
x=\frac{318000}{11}
Reduce the fraction \frac{1590000}{55} to lowest terms by extracting and canceling out 5.
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