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)/10-7-2 = 0

2/5*z-9 = 0 // + 9

2/5*z = 9 // : 2/5

z = 9/2/5

z = 45/2

z = 45/2

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