(15-7-x)/20=18,75

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Solution for (15-7-x)/20=18,75 equation: 


x in (-oo:+oo)

(15-x-7)/20 = 18.75 // - 18.75

(15-x-7)/20-18.75 = 0

(8-x)/20-18.75 = 0

(8-x)/20+(-18.75*20)/20 = 0

8-x-18.75*20 = 0

-x-367 = 0

(-x-367)/20 = 0

(-x-367)/20 = 0 // * 20

-x-367 = 0

-x-367 = 0 // + 367

-x = 367 // * -1

x = -367

x = -367

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