(3x-4)/5=7

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Solution for (3x-4)/5=7 equation: 


x in (-oo:+oo)

(3*x-4)/5 = 7 // - 7

(3*x-4)/5-7 = 0

(3*x-4)/5+(-7*5)/5 = 0

3*x-7*5-4 = 0

3*x-39 = 0

(3*x-39)/5 = 0

(3*x-39)/5 = 0 // * 5

3*x-39 = 0

3*x-39 = 0 // + 39

3*x = 39 // : 3

x = 39/3

x = 13

x = 13

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