-3/7(y-35)-1/21y

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Solution for -3/7(y-35)-1/21y equation: 


y in (-oo:+oo)

(-3/7)*(y-35)-((1/21)*y) = 0

(-3/7)*(y-35)+(-1/21)*y = 0

-3/7*(y-35)-y/21 = 0

(-3/7*21*(y-35))/21-y/21 = 0

-3/7*21*(y-35)-y = 0

315-10*y = 0

(315-10*y)/21 = 0

(315-10*y)/21 = 0 // * 21

315-10*y = 0

315-10*y = 0 // - 315

-10*y = -315 // : -10

y = -315/(-10)

y = 63/2

y = 63/2

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