Solve for x
x=180
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x\times 5=100\times 9
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 100x, the least common multiple of 100,x.
x\times 5=900
Multiply 100 and 9 to get 900.
x=\frac{900}{5}
Divide both sides by 5.
x=180
Divide 900 by 5 to get 180.
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