Solve for x
x=-8990
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\frac{81000}{9}=10-x
Divide both sides by 9.
9000=10-x
Divide 81000 by 9 to get 9000.
10-x=9000
Swap sides so that all variable terms are on the left hand side.
-x=9000-10
Subtract 10 from both sides.
-x=8990
Subtract 10 from 9000 to get 8990.
x=-8990
Multiply both sides by -1.
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