4z/10-2=-7

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Solution for 4z/10-2=-7 equation: 


z in (-oo:+oo)

(4*z)/10-2 = -7 // + 7

(4*z)/10-2+7 = 0

2/5*z+5 = 0 // - 5

2/5*z = -5 // : 2/5

z = -5/2/5

z = -25/2

z = -25/2

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