If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x-4 = 0
x-4 = 0
x-4 = 0
x-4 = 0 // + 4
x = 4
x in (-oo:4) U (4:+oo)
x-(3/(x-4)) = 0
x-3*(x-4)^-1 = 0
x-3/(x-4) = 0
(x*(x-4))/(x-4)-3/(x-4) = 0
x*(x-4)-3 = 0
x^2-4*x-3 = 0
x^2-4*x-3 = 0
x^2-4*x-3 = 0
DELTA = (-4)^2-(-3*1*4)
DELTA = 28
DELTA > 0
x = (28^(1/2)+4)/(1*2) or x = (4-28^(1/2))/(1*2)
x = (2*7^(1/2)+4)/2 or x = (4-2*7^(1/2))/2
(x-((4-2*7^(1/2))/2))*(x-((2*7^(1/2)+4)/2)) = 0
((x-((4-2*7^(1/2))/2))*(x-((2*7^(1/2)+4)/2)))/(x-4) = 0
((x-((4-2*7^(1/2))/2))*(x-((2*7^(1/2)+4)/2)))/(x-4) = 0 // * x-4
(x-((4-2*7^(1/2))/2))*(x-((2*7^(1/2)+4)/2)) = 0
( x-((2*7^(1/2)+4)/2) )
x-((2*7^(1/2)+4)/2) = 0 // + (2*7^(1/2)+4)/2
x = (2*7^(1/2)+4)/2
( x-((4-2*7^(1/2))/2) )
x-((4-2*7^(1/2))/2) = 0 // + (4-2*7^(1/2))/2
x = (4-2*7^(1/2))/2
x in { (2*7^(1/2)+4)/2, (4-2*7^(1/2))/2 }
| 0.0833x-0.166=0.833 | | 5x^2-8x+20=0 | | 24/7*1/8 | | 1/12x—1/6=5/6 | | 9=x(8x-1) | | 982/3 | | 25+5x=11-2x | | 5-3c=-20 | | 25.51/4 | | 2w^2+2w=90 | | 8n-15=57+2n | | 5ln(x-2)=34 | | log(x+4)-logx=log(x-2) | | 4y-24=-20+6y | | x+(x+1)+(x+2)=1095 | | y^2-4=7y-4 | | 3(-2x-8+7/6)-3=12 | | P=20-.2Q | | 5(3x+8)=24-2(x-8) | | 2(6x-5)=2-1(3x-2) | | 4y-1=20 | | 8x-(7x+6)=2x-31 | | p=a+b-8 | | 1-(4)/(x)=(21)/(x^2) | | n+(n+2)=70 | | 7=1/2x-5 | | y=x-35 | | -0.2w+0.15+9w=-17.7+7.1w | | 14.53-3.8h=-6.5h-19.22 | | -2p-6.9p-19.69=12.11-5.9p | | 18.3q=16.7q-20 | | 0=9x^2-20t+9 |