((x/4)+(4*x))/(x/7)=56.7

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Solution for ((x/4)+(4*x))/(x/7)=56.7 equation: 


D( x )

x/7 = 0

x/7 = 0

x/7 = 0

1/7*x = 0 // : 1/7

x = 0

x in (-oo:0) U (0:+oo)

(x/4+4*x)/(x/7) = 56.7 // - 56.7

(x/4+4*x)/(x/7)-56.7 = 0

(17/4*x)/(1/7*x)-56.7 = 0

(17/4*x)/(1/7*x)+(-56.7*1/7*x)/(1/7*x) = 0

(17*x)/4-56.7*1/7*x = 0

-3.849999838*x = 0

(-3.849999838*x)/(1/7*x) = 0

(-3.849999838*x)/(1/7*x) = 0 // * x/7

-3.849999838*x = 0

-3.849999838*x = 0 // : -3.849999838

x = 0

x in { 0} 

x belongs to the empty set

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