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)
7.1/x = 2.5 // - 2.5
7.1/x-2.5 = 0
7.1*x^-1 = 2.5 // : 7.1
x^-1 = 0.35211268
-1 < 0
1/(x^1) = 0.35211268 // * x^1
1 = 0.35211268*x^1 // : 0.35211268
2.83999997 = x^1
x = 2.83999997
x = 2.83999997
| 6v^2+8v+2=2 | | 10y^7+26y^6-12y^5=0 | | 2v^2-5v-16=-4 | | 3(x)-4=2(x) | | 4-5n=-7 | | 0.125=188 | | x+2(41)=103 | | 0=v^2-3vy-70y^2 | | y-3.1=2.2 | | X^3-7x^2+12x= | | -2.5k+3(k-6)=7 | | 1/3*3*14*6 | | x+(x*0.8)=4362 | | 3x^2-8=-116 | | x+(x*0.8)=6156 | | -2x=-z+6xy | | x+(x*0.8)=4452 | | 5(x+7)=4x | | -5-b=-b | | .25x-6=.125x+2 | | 15+x+27=102-x | | (4z-3)(9-z)=0 | | 10c-5=9c | | 6x/10=7 | | x+(x*0.8)=4374 | | 3-2(2x-4)=23 | | x+(x*0.8)=4739 | | x+(x*0.8)=4506 | | x+(x*0.8)=4829 | | x+(x*0.8)=4645 | | x+(x*0.8)=4823 | | 9(x-2)+2=9x-2(2-x) |