Solve for x
x = \frac{21}{10} = 2\frac{1}{10} = 2.1
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x\times 100=30\times 7
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 30x, the least common multiple of 30,x.
x\times 100=210
Multiply 30 and 7 to get 210.
x=\frac{210}{100}
Divide both sides by 100.
x=\frac{21}{10}
Reduce the fraction \frac{210}{100} to lowest terms by extracting and canceling out 10.
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