(z-5)/7=-1

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Solution for (z-5)/7=-1 equation: 


z in (-oo:+oo)

(z-5)/7 = -1 // + 1

(z-5)/7+1 = 0

(z-5)/7+(1*7)/7 = 0

z+1*7-5 = 0

z+2 = 0

(z+2)/7 = 0

(z+2)/7 = 0 // * 7

z+2 = 0

z+2 = 0 // - 2

z = -2

z = -2

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