(7x+57)/9=4

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Solution for (7x+57)/9=4 equation: 


x in (-oo:+oo)

(7*x+57)/9 = 4 // - 4

(7*x+57)/9-4 = 0

(7*x+57)/9+(-4*9)/9 = 0

7*x-4*9+57 = 0

7*x+21 = 0

(7*x+21)/9 = 0

(7*x+21)/9 = 0 // * 9

7*x+21 = 0

7*x+21 = 0 // - 21

7*x = -21 // : 7

x = -21/7

x = -3

x = -3

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