If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
2*x-14 = 0
4*x-28 = 0
2*x-14 = 0
2*x-14 = 0
2*x-14 = 0 // + 14
2*x = 14 // : 2
x = 14/2
x = 7
4*x-28 = 0
4*x-28 = 0
4*x-28 = 0 // + 28
4*x = 28 // : 4
x = 28/4
x = 7
x in (-oo:7) U (7:+oo)
(x-6)/(4*x-28)-((x-5)/(2*x-14)) = 0
(x-6)/(4*x-28)+(-1*(x-5))/(2*x-14) = 0
((x-6)*(2*x-14))/((4*x-28)*(2*x-14))+(-1*(x-5)*(4*x-28))/((4*x-28)*(2*x-14)) = 0
(x-6)*(2*x-14)-1*(x-5)*(4*x-28) = 0
22*x-2*x^2-56 = 0
22*x-2*x^2-56 = 0
2*(11*x-x^2-28) = 0
11*x-x^2-28 = 0
DELTA = 11^2-(-28*(-1)*4)
DELTA = 9
DELTA > 0
x = (9^(1/2)-11)/(-1*2) or x = (-9^(1/2)-11)/(-1*2)
x = 4 or x = 7
2*(x-4)*(x-7) = 0
(2*(x-4)*(x-7))/((4*x-28)*(2*x-14)) = 0
(2*(x-4)*(x-7))/((4*x-28)*(2*x-14)) = 0 // * (4*x-28)*(2*x-14)
2*(x-4)*(x-7) = 0
( x-4 )
x-4 = 0 // + 4
x = 4
( x-7 )
x-7 = 0 // + 7
x = 7
x in { 7}
x = 4
| -9+2x=x+13 | | 2/3x=3/4 | | 13w+39-2w=-82 | | 7.41=2(3.14)+r | | -43-(27)= | | 8/5a=32 | | 3x^2+5x^2=8 | | 45L+98=458 | | -7+3=-2+13 | | 9-0.2(v-8)=0.3(6v-8) | | 6x-13=8x-27 | | -33=1+2 | | .50x+.15(50)=23.5 | | e^3x=90 | | 3x^2=5x+20 | | 98+45l=485 | | 0=x^3+6x-7 | | -243=-9(-10+x) | | 32=3(4n+3)-6(5n+7) | | 2x^2-20x=-32 | | t-28=4t | | -40-x=-8x+86 | | -9(5)(-1)(-1)= | | 3x+16=x+6 | | -6n+2=-5n-6 | | 1.9q-2.9-5.2q=-2.3q-2.9 | | 11x+5=247 | | x+1=5x+37 | | 2753+n=5098% | | ln(x)=3.29338 | | 6x+47=3x+22 | | 180+2.50n=1000 |