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)
6/x-(2/3) = -4/x // + -4/x
6/x-(-4/x)-(2/3) = 0
6/x+4*x^-1-2/3 = 0
10*x^-1 = 2/3 // : 10
x^-1 = 1/15
-1 < 0
1/(x^1) = 1/15 // * x^1
1 = 1/15*x^1 // : 1/15
15 = x^1
x = 15
x = 15
| 2(X+50)-3*(50-X)=5 | | 2(X+10)-3*(10-X)=5 | | 4x-12+x+17+2x=180 | | 2(X+35)-3*(35-X)=5 | | 2(X+55)-3*(55-X)=5 | | -2(4t-6)=5(3t-2) | | 4N=36*-2 | | (x-7)(x-7)=x^2+k(x)+m | | 2(X+20)-3*(20-X)=5 | | 2(X+100)-3*(100-X)=5 | | 3(2v+3)=-3(-3v+4) | | 2(X+15)-3*(15-X)=5 | | 4N=36(-2+N) | | 65+70+x+56=180 | | 2(X+5)-3*(5-X)=5 | | -6+5x=8x+6 | | X*y*z=y*x*z | | 2(X+95)-3*(95-X)=5 | | 90+70+x+24=180 | | 2(X+75)-3*(75-X)=5 | | 83.5=x+(x*0.1) | | -9x-9x= | | 2(X+65)-3*(65-X)=5 | | 6x+10+40+70=180 | | -1=-3(-2)+2 | | 2(X+70)-3*(70-X)=5 | | 2(X+85)-3*(85-X)=5 | | (x+6)(x+6)=x^2+cx+d | | 2(X+85)+-3(85-X)=5 | | 3x+12+2x-2=180 | | 35x=2000 | | 3/m-k/7 |