(-4x)/(x+7)-(8)/(x+7)

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Solution for (-4x)/(x+7)-(8)/(x+7) equation: 


D( x )

x+7 = 0

x+7 = 0

x+7 = 0

x+7 = 0 // - 7

x = -7

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

(-4*x)/(x+7)-(8/(x+7)) = 0

(-4*x)/(x+7)-8*(x+7)^-1 = 0

(-4*x)/(x+7)-8/(x+7) = 0

-4*x-8 = 0

(-4*x-8)/(x+7) = 0

(-4*x-8)/(x+7) = 0 // * x+7

-4*x-8 = 0

-4*x-8 = 0 // + 8

-4*x = 8 // : -4

x = 8/(-4)

x = -2

x = -2

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