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 = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
3*x-(2*x)-(4/1) = x-(8/x)+7 // - x-(8/x)+7
3*x-(2*x)-x+8/x-(4/1)-7 = 0
3*x-2*x-x+8/x-7-4 = 0
8*x^-1 = 11 // : 8
x^-1 = 11/8
-1 < 0
1/(x^1) = 11/8 // * x^1
1 = 11/8*x^1 // : 11/8
8/11 = x^1
x = 8/11
x = 8/11
| -5/11p=-8 | | -8+7x=-36 | | 10x=4x^2-2 | | 2x+9+6x-7=66 | | 6/(5x+1)=2/(2x-1) | | -3(4-4)=-27 | | b=(2f+3z)/2a | | 21+6x=-18 | | x/5-3=x/10+4 | | 3=3z-3(7z+2) | | 6x-4=7-x+3 | | X-39-x+61=180 | | 3=7-5a | | -125/x+40=-2x+55 | | -42+8x=-36 | | 10n-5(n+8)=5 | | X+61-x-39=180 | | 2(3p+1)=-5(-1-4p) | | 9m^3-9m^2= | | 2x+3+4x=16 | | 31+1.00x=50 | | x/4+3=6 | | -4(n-6)-(1+5n)=-10n | | 2x+1/3y=5 | | 48+5x=-57 | | 1.5x+6=5x+4 | | 7x-2(-5x-15)=183 | | 7x-2(-5x-15)=13 | | (9x+15)*2+(6x+15)*2=180 | | 12-3(5-x)=3(4-x)-4(2-2x) | | 200/x | | 5x+2-3x=10 |