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*((3*z-6)/3)-(2*z)-((5/5)*z) = 0
z*((3*z-6)/3)-2*z-z = 0
(z*(3*z-6))/3-2*z-z = 0
(z*(3*z-6))/3+(-2*3*z)/3+(3*(-z))/3 = 0
z*(3*z-6)-2*3*z+3*(-z) = 0
3*z^2-12*z-3*z = 0
3*z^2-15*z = 0
3*z^2-15*z = 0
3*z*(z-5) = 0
z-5 = 0 // + 5
z = 5
3*z*(z-5) = 0
(3*z*(z-5))/3 = 0
(3*z*(z-5))/3 = 0 // * 3
3*z*(z-5) = 0
( 3*z )
3*z = 0 // : 3
z = 0
( z-5 )
z-5 = 0 // + 5
z = 5
z in { 0, 5 }
| 6v+8=2v+20 | | 5(2x+4)=2(x+5)-20 | | p=3x+3y | | 8c+6-c=4+3c+2 | | (x-2)+4=0 | | 3y+4=7-2y | | -15=-15x | | 5X^2-6X-160=0 | | x+(x+7)=20 | | (5x+3)+12=0 | | 119+9-4a=30 | | 2(x-1)-6x=10-2(x-4) | | x+1(x-7)=85 | | 3n^2+2n=20 | | 12k^2-36k+27=k | | 2x^4-17x^3+30x^2=0 | | 2x+2(x-7)=85 | | 5(y-1)=3(2y-5)-(1-3y) | | 12x-20=55 | | 3sinx*cosx=1 | | 2x^2+8x-5=2(x-1) | | 18=2+1 | | 7x+20=8x+12 | | 12x-20=110 | | p+3-5p=-6p-5-19p | | 78-11x=13x | | p+3-5p=6p-5-10p | | 2y+5=-2 | | -x^2+10x=24 | | 3p+9x= | | 0.07+0.04x=2 | | -12x-4x=-5 |