(45-x)/7=4

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Solution for (45-x)/7=4 equation: 


x in (-oo:+oo)

(45-x)/7 = 4 // - 4

(45-x)/7-4 = 0

(45-x)/7+(-4*7)/7 = 0

45-x-4*7 = 0

17-x = 0

(17-x)/7 = 0

(17-x)/7 = 0 // * 7

17-x = 0

17-x = 0 // - 17

-x = -17 // * -1

x = 17

x = 17

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