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

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


x in (-oo:+oo)

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

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

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

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

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

-7*x-70 = 0

(-7*x-70)/(7*21) = 0

(-7*x-70)/(7*21) = 0 // * 7*21

-7*x-70 = 0

-7*x-70 = 0 // + 70

-7*x = 70 // : -7

x = 70/(-7)

x = -10

x = -10

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