(x-12)/6=(x+7)/4

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Solution for (x-12)/6=(x+7)/4 equation: 


x in (-oo:+oo)

(x-12)/6 = (x+7)/4 // - (x+7)/4

(x-12)/6-((x+7)/4) = 0

(x-12)/6+(-1*(x+7))/4 = 0

(4*(x-12))/(4*6)+(-1*6*(x+7))/(4*6) = 0

4*(x-12)-1*6*(x+7) = 0

-2*x-90 = 0

(-2*x-90)/(4*6) = 0

(-2*x-90)/(4*6) = 0 // * 4*6

-2*x-90 = 0

-2*x-90 = 0 // + 90

-2*x = 90 // : -2

x = 90/(-2)

x = -45

x = -45

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