3/(x+4)+3=18/(x+4)

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Solution for 3/(x+4)+3=18/(x+4) equation: 


D( x )

x+4 = 0

x+4 = 0

x+4 = 0

x+4 = 0 // - 4

x = -4

x in (-oo:-4) U (-4:+oo)

3/(x+4)+3 = 18/(x+4) // - 18/(x+4)

3/(x+4)-(18/(x+4))+3 = 0

3/(x+4)-18*(x+4)^-1+3 = 0

3/(x+4)-18/(x+4)+3 = 0

3/(x+4)-18/(x+4)+(3*(x+4))/(x+4) = 0

3*(x+4)-18+3 = 0

3*x-15+12 = 0

3*x-3 = 0

(3*x-3)/(x+4) = 0

(3*x-3)/(x+4) = 0 // * x+4

3*x-3 = 0

3*x-3 = 0 // + 3

3*x = 3 // : 3

x = 3/3

x = 1

x = 1

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