3/(x+1)=1/2

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Solution for 3/(x+1)=1/2 equation: 


D( x )

x+1 = 0

x+1 = 0

x+1 = 0

x+1 = 0 // - 1

x = -1

x in (-oo:-1) U (-1:+oo)

3/(x+1) = 1/2 // - 1/2

3/(x+1)-(1/2) = 0

3/(x+1)-1/2 = 0

(2*3)/(2*(x+1))+(-1*(x+1))/(2*(x+1)) = 0

2*3-1*(x+1) = 0

5-x = 0

(5-x)/(2*(x+1)) = 0

(5-x)/(2*(x+1)) = 0 // * 2*(x+1)

5-x = 0

5-x = 0 // - 5

-x = -5 // * -1

x = 5

x = 5

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