(8x)/3=(x-9)/21

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Solution for (8x)/3=(x-9)/21 equation: 


x in (-oo:+oo)

(8*x)/3 = (x-9)/21 // - (x-9)/21

(8*x)/3-((x-9)/21) = 0

(-1*(x-9))/21+(8*x)/3 = 0

(-1*3*(x-9))/(3*21)+(8*21*x)/(3*21) = 0

8*21*x-1*3*(x-9) = 0

165*x+27 = 0

(165*x+27)/(3*21) = 0

(165*x+27)/(3*21) = 0 // * 3*21

165*x+27 = 0

165*x+27 = 0 // - 27

165*x = -27 // : 165

x = -27/165

x = -9/55

x = -9/55

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