If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z in (-oo:+oo)
z = (0.2-0.25)/0.3 // - (0.2-0.25)/0.3
z-((0.2-0.25)/0.3) = 0
z-3.33333333*(0.2-0.25) = 0
z+0.1666666665 = 0 // - 0.1666666665
z = -0.1666666665
z = -0.1666666665
| -2+12=15x-3-14x | | x+5=log(4)256 | | 3x=1-x | | 24-6x=14+3x | | -1(2x+3)=2(4x-3) | | -7/6*18=z | | -7/6*12=y | | -5-14=3x-18 | | 30=10(x-4) | | 6-2x=-4x-4 | | 3x-7.5=7.5 | | 5x+1=126-11x | | 2*(x+5)=x | | x+10=2x-3 | | x+6=2(5x-6) | | 6-8(s-3/4)-20 | | 7x-3=5+9 | | 4.2+1.8v=54 | | -2z+4=14 | | 410=3.14 | | 410=3.146 | | x^2-6.5*x-7.5=0 | | Z=0.93 | | 0=6+1r | | H=2.6 | | T=6.83 | | G=-2 | | Z=1.75 | | H=0.38 | | T=-11 | | 4x^4y^2z^2/12x^4y^3z | | G=-8 |