If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
6*x-6 = 0
(x^2+12*x+36)/(x^2+5*x-6) = 0
x^2+5*x-6 = 0
6*x-6 = 0
6*x-6 = 0
6*x-6 = 0 // + 6
6*x = 6 // : 6
x = 6/6
x = 1
(x^2+12*x+36)/(x^2+5*x-6) = 0
(x^2+12*x+36)/(x^2+5*x-6) = 0
x^2+12*x+36 = 0
x^2+12*x+36 = 0
DELTA = 12^2-(1*4*36)
DELTA = 0
x = -12/(1*2)
x = -6 or x = -6
(x+6)^2 = 0
x^2+5*x-6 = 0
x^2+5*x-6 = 0
DELTA = 5^2-(-6*1*4)
DELTA = 49
DELTA > 0
x = (49^(1/2)-5)/(1*2) or x = (-49^(1/2)-5)/(1*2)
x = 1 or x = -6
(x+6)*(x-1) = 0
((x+6)^2)/((x+6)*(x-1)) = 0
x+6 = 0 // - 6
x = -6
x^2+5*x-6 = 0
x^2+5*x-6 = 0
x^2+5*x-6 = 0
DELTA = 5^2-(-6*1*4)
DELTA = 49
DELTA > 0
x = (49^(1/2)-5)/(1*2) or x = (-49^(1/2)-5)/(1*2)
x = 1 or x = -6
x in (-oo:-6) U (-6:1) U (1:+oo)
((X^2-36)/(6*x-6))/((x^2+12*x+36)/(x^2+5*x-6)) = 0
((X^2-36)*(x^2+5*x-6))/((6*x-6)*(x^2+12*x+36)) = 0
x^2+12*x+36 = 0
x^2+12*x+36 = 0
DELTA = 12^2-(1*4*36)
DELTA = 0
x = -12/(1*2)
x = -6 or x = -6
(x+6)^2 = 0
x^2+5*x-6 = 0
x^2+5*x-6 = 0
DELTA = 5^2-(-6*1*4)
DELTA = 49
DELTA > 0
x = (49^(1/2)-5)/(1*2) or x = (-49^(1/2)-5)/(1*2)
x = 1 or x = -6
(x+6)*(x-1) = 0
((X^2-36)*(x+6)*(x-1))/((6*x-6)*(x+6)^2) = 0
( x+6 )
x+6 = 0 // - 6
x = -6
( x-1 )
x-1 = 0 // + 1
x = 1
x in { -6}
x in { 1}
x belongs to the empty set
| 3*70-60=440 | | -1-h=-10 | | -4=21w | | 440=2(3w-60)+2w | | -3/4n+3n=3/2n+11/3 | | (3x-2)/7=(4x-1)/5 | | 8x^2-91x-294=0 | | X^2-36/6x-6 | | 200=200+90t+80t | | 4x+9+9x=30 | | (6/x^2-9)-(1/x-3)=1 | | 80t+200=90t | | x+19/3=7 | | 0.80(x-100)=50 | | 4+(-4)=8 | | Ab-c=10 | | 10-(-5)=5 | | 18x^2-33x=195 | | 5(3+3x)-2=73 | | 25.7y=179.9 | | 4m-15=-42+m | | 6(b+4)=3(4b-16) | | 20x^2-39x=135 | | I=104x-207412 | | 4x+30=6(x+5)-2x | | 192/20 | | -y/9=21 | | 6.7x-2.7=10.7 | | f=1/8(3.14)r^2p | | (2x-4)(2x-4)=0 | | f=1/83.14r^2p | | 0.08(x-100)=26.5-0.07x |