Solve for x
x=108
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25\times 1800-1800=400x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 25x, the least common multiple of x,25x.
45000-1800=400x
Multiply 25 and 1800 to get 45000.
43200=400x
Subtract 1800 from 45000 to get 43200.
400x=43200
Swap sides so that all variable terms are on the left hand side.
x=\frac{43200}{400}
Divide both sides by 400.
x=108
Divide 43200 by 400 to get 108.
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