(5x-8)/6=(12x-21)/6

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Solution for (5x-8)/6=(12x-21)/6 equation: 


x in (-oo:+oo)

(5*x-8)/6 = (12*x-21)/6 // - (12*x-21)/6

(5*x-8)/6-((12*x-21)/6) = 0

(5*x-8)/6+(-1*(12*x-21))/6 = 0

5*x-1*(12*x-21)-8 = 0

13-7*x = 0

(13-7*x)/6 = 0

(13-7*x)/6 = 0 // * 6

13-7*x = 0

13-7*x = 0 // - 13

-7*x = -13 // : -7

x = -13/(-7)

x = 13/7

x = 13/7

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