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-((4*x)/x)+6/3+2 = x // - x
3*x-x-((4*x)/x)+6/3+2 = 0
3*x-x+6/3-4+2 = 0
2*x = 0 // : 2
x = 0
x in { 0}
x belongs to the empty set
| 4(x-2)=5x+1/4 | | -3(-6-4x)=2(7x-1)+2 | | m=so | | 4x+9=2(2x+4)1 | | 1/3b=1/4b+6 | | 4.9x^2+7.35x-31=0 | | 9x^2+7x-8=0 | | 2z+2=2-6z | | 30.5+x+24.7=199.7 | | -7-3n=-4n | | -7-3n=-4n | | -7-3n=-4n | | 3y+5-9=-33 | | 5(2i+3j)+4(3i-3j)= | | n+-12=5 | | x/4-2x/3=10 | | 31=8r+5r | | 3x+24+5x=24+8x | | 6c-7+3c=-27 | | 0=x^2+34x-165 | | -60-5x=5-8x | | 8/4-2/3=-10 | | (9/7x+14)=(3/x+2)-(2/7) | | 90x=60x-120 | | 1/2(x+6)=2/9(x+8) | | 4=80-5x | | 6x-5=4x-3 | | 4(3x-5)+6= | | 1/7(6x-4) | | 2+y=15 | | -(2x-5)=11 | | 3/2=a+6/5 |