7+7/(z+7)=8

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Solution for 7+7/(z+7)=8 equation: 


D( z )

z+7 = 0

z+7 = 0

z+7 = 0

z+7 = 0 // - 7

z = -7

z in (-oo:-7) U (-7:+oo)

7/(z+7)+7 = 8 // - 8

7/(z+7)-8+7 = 0

7/(z+7)+(-8*(z+7))/(z+7)+(7*(z+7))/(z+7) = 0

7*(z+7)-8*(z+7)+7 = 0

7*z-8*z-49+49 = 0

-z = 0

-z/(z+7) = 0

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

-z = 0

-1*z = 0 // : -1

z = 0

z = 0

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