2z/7-1=-2

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Solution for 2z/7-1=-2 equation: 


z in (-oo:+oo)

(2*z)/7-1 = -2 // + 2

(2*z)/7-1+2 = 0

2/7*z+1 = 0 // - 1

2/7*z = -1 // : 2/7

z = -1/2/7

z = -7/2

z = -7/2

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