Solve for x
x = \frac{15820000}{39} = 405641\frac{1}{39} \approx 405641.025641026
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-1672000+120000+4x-0.1x-18000=12000
Multiply both sides of the equation by 4.
-1552000+4x-0.1x-18000=12000
Add -1672000 and 120000 to get -1552000.
-1552000+3.9x-18000=12000
Combine 4x and -0.1x to get 3.9x.
-1570000+3.9x=12000
Subtract 18000 from -1552000 to get -1570000.
3.9x=12000+1570000
Add 1570000 to both sides.
3.9x=1582000
Add 12000 and 1570000 to get 1582000.
x=\frac{1582000}{3.9}
Divide both sides by 3.9.
x=\frac{15820000}{39}
Expand \frac{1582000}{3.9} by multiplying both numerator and the denominator by 10.
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