-2/7(y-28)-1/21y

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Solution for -2/7(y-28)-1/21y equation:


y in (-oo:+oo)

(-2/7)*(y-28)-((1/21)*y) = 0

(-2/7)*(y-28)+(-1/21)*y = 0

-2/7*(y-28)-y/21 = 0

(-2/7*21*(y-28))/21-y/21 = 0

-2/7*21*(y-28)-y = 0

168-7*y = 0

(168-7*y)/21 = 0

(168-7*y)/21 = 0 // * 21

168-7*y = 0

168-7*y = 0 // - 168

-7*y = -168 // : -7

y = -168/(-7)

y = 24

y = 24

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