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 = 0
2-x = 0
2-x = 0
2-x = 0 // - 2
-x = -2 // * -1
x = 2
x in (-oo:2) U (2:+oo)
5/(2-x) = 7/10 // - 7/10
5/(2-x)-(7/10) = 0
5/(2-x)-7/10 = 0
(5*10)/(10*(2-x))+(-7*(2-x))/(10*(2-x)) = 0
5*10-7*(2-x) = 0
7*x+36 = 0
(7*x+36)/(10*(2-x)) = 0
(7*x+36)/(10*(2-x)) = 0 // * 10*(2-x)
7*x+36 = 0
7*x+36 = 0 // - 36
7*x = -36 // : 7
x = -36/7
x = -36/7
| g(x)=x^2+10x+22 | | 6z+5=17 | | 5(x-6)=55 | | y=4-f(x-9) | | 5r-9r= | | x^2+6x=388 | | -11=1-4y | | 2w-1=-7 | | ax=x^2+3 | | 41/4•22/5 | | 2(u-8)=2 | | 7-9x=-47 | | 61=9w-2 | | 3x+y=9sol | | w/7+3=-3 | | 8=sqrt(12-4x) | | -2(t-3)+7t=8t-6 | | 5y/7-6/7=2-4y | | 8=sqrt(12-4x)/6 | | 3(3x+3)=12x+6-3x+3 | | 0.333333333x=-9 | | 5(7x-4)+6=35x-14 | | (9x^.3333)/(3x^.2) | | 9cos^2(x)-5sin^2(x)-5cos(x)+4=0 | | 16t^2-27t-3=0 | | x^8=-81x | | 0.14(y-8)+0.12y=0.16y-0.03(60) | | 0.333333333x=5 | | 4/x=x | | 0.5x=21 | | (9x^1/3)/(3x^1/5) | | 0.80x+0.40(160)=0.40(86) |