If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(4*x-16)/20 = 0
4*x-16 = 0 // + 16
4*x = 16 // : 4
x = 16/4
x = 4
x = 4
| 2x^4+3x^3-18x^2+3x-20=0 | | -6+7(x-2)=12x+4-5x | | 54+77/10 | | -7x-10=25 | | 4(4x-20)=16(x-5) | | 4(4x-20)=16(x-5) | | 4(4x-20)=16(x-5) | | 1/x=1/5+3/2x | | 4(4x-20)=16(x-5) | | 194-5x=5x+9 | | 7(x+6)=4x-57 | | 84-4x=7x+8x | | 4+.3s=0 | | 114-4x=16+3x | | 8(2x-3)=16 | | 4(3x+2)=10(x+4) | | 2(4x+2)=4(3x-1) | | -16x^2+10x+448=0 | | 9x^2-x+8=0 | | (s^2-3s-28)/(s+2) | | 4(3x-4)=8(2x-1) | | (3.26+2.045)*(0.376-0.18)= | | 36x-21-11x=-105 | | 2/3(6-9x)+x=-26 | | y=2x^2+6x+27 | | (8x+5)+(x+4)= | | 2x+8=8x-10 | | 3x+40+6x+50=180 | | t=-16-t | | (x-83)+215=940 | | (2a^3+a-8)-(4-8a^3-3a^2)= | | -7+9=3a+49 |