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)
210/x = 101-86 // - 101-86
210/x-101+86 = 0
210*x^-1 = 15 // : 210
x^-1 = 1/14
-1 < 0
1/(x^1) = 1/14 // * x^1
1 = 1/14*x^1 // : 1/14
14 = x^1
x = 14
x = 14
| x+70=560+70 | | 7a+10=29 | | 24x^9y^6/42x^9y | | 4x+3.5=-3x+4.1 | | 66a^6-22a^8=0 | | x+(x+70)=1190 | | X/9=32 | | 62/36.06 | | 36x+32=392 | | 30=-8w+3(w-5) | | 6x-x+12-9= | | 3+-5= | | -2(4+6x)+5=9 | | x+(x+70)=730 | | 2(-6x+10)=-4 | | 4c^2+27c+35= | | 829/621.75 | | x-8sqx+16=0 | | 1-9/7x=5/2 | | 3(-3x+9)=-36 | | 5-9x=-301 | | 2(x^4+50)=0 | | 17x^2-64x-169=0 | | 6c^2=9+15c | | 9x+8=7.5x+16 | | 9x+1.4=4x+9 | | w^2-9w+18= | | x+(x+59)=793 | | 80*41/70 | | t^2+5t=24 | | 17x^2-64x-105=0 | | 4/9-1/9 |