(23-k)/21=18

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Solution for (23-k)/21=18 equation: 


k in (-oo:+oo)

(23-k)/21 = 18 // - 18

(23-k)/21-18 = 0

(23-k)/21+(-18*21)/21 = 0

23-k-18*21 = 0

-k-355 = 0

(-k-355)/21 = 0

(-k-355)/21 = 0 // * 21

-k-355 = 0

-k-355 = 0 // + 355

-k = 355 // * -1

k = -355

k = -355

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