x/100=380/420

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Solution for x/100=380/420 equation: 


x in (-oo:+oo)

x/100 = 380/420 // - 380/420

x/100-(380/420) = 0

x/100-19/21 = 0

1/100*x-19/21 = 0 // + 19/21

1/100*x = 19/21 // : 1/100

x = 19/21/1/100

x = 1900/21

x = 1900/21

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