2/3y-(y+2/7)=1/21(y+4)

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Solution for 2/3y-(y+2/7)=1/21(y+4) equation: 


y in (-oo:+oo)

(2/3)*y-y-(2/7) = (1/21)*(y+4) // - (1/21)*(y+4)

(2/3)*y-((1/21)*(y+4))-y-(2/7) = 0

(-1/21)*(y+4)+(2/3)*y-y-2/7 = 0

(2*y)/3-1/21*(y+4)-y-2/7 = 0

(-1/21*3*7*(y+4))/(3*7)+(2*7*y)/(3*7)+(3*7*(-y))/(3*7)+(-2*3)/(3*7) = 0

2*7*y-1/21*3*7*(y+4)+3*7*(-y)-2*3 = 0

13*y-21*y-6-4 = 0

-8*y-6-4 = 0

-8*y-10 = 0

(-8*y-10)/(3*7) = 0

(-8*y-10)/(3*7) = 0 // * 3*7

-8*y-10 = 0

-8*y-10 = 0 // + 10

-8*y = 10 // : -8

y = 10/(-8)

y = -5/4

y = -5/4

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