(2x-1)/21=(3x-7)/15

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Solution for (2x-1)/21=(3x-7)/15 equation: 


x in (-oo:+oo)

(2*x-1)/21 = (3*x-7)/15 // - (3*x-7)/15

(2*x-1)/21-((3*x-7)/15) = 0

(2*x-1)/21+(-1*(3*x-7))/15 = 0

(15*(2*x-1))/(15*21)+(-1*21*(3*x-7))/(15*21) = 0

15*(2*x-1)-1*21*(3*x-7) = 0

132-33*x = 0

(132-33*x)/(15*21) = 0

(132-33*x)/(15*21) = 0 // * 15*21

132-33*x = 0

132-33*x = 0 // - 132

-33*x = -132 // : -33

x = -132/(-33)

x = 4

x = 4

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