7(21x/3y)=7

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Solution for 7(21x/3y)=7 equation: 


x in (-oo:+oo)

7*((21*x)/3)*y = 7 // - 7

7*((21*x)/3)*y-7 = 0

49*x*y-7 = 0 // + 7

49*x*y = 7 // : 49*y

x = 7/(49*y)

x = (y^-1)/7

x = (y^-1)/7

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