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

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


x in (-oo:+oo)

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

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

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

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

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

63-21*x+63 = 0

126-21*x = 0

(126-21*x)/(3*7*21) = 0

(126-21*x)/(3*7*21) = 0 // * 3*7*21

126-21*x = 0

126-21*x = 0 // - 126

-21*x = -126 // : -21

x = -126/(-21)

x = 6

x = 6

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