If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(-a*(-b)*c)/(-d) = 0
(2*(-a)*(-b)*x)/(-2) = 0
(-2*(-2)*2*x)/(-2) = 0
(-1/4)*y > -6
3.1413
| (-a)(-b)(-c)/(-d)=(abc)/-d | | (-a)(-b)(-c)/(-d)=(abc) | | (-a)(-b)(c)/(-d) | | .75(x-1)+5=6 | | 3(x^2)-9x+4=0 | | (-a)(-b)(2x)/(-2) | | 8sin^3x-1=0 | | 21x^8/=3x^8 | | (-2)(-2)(2x)/(-2) | | (2x^9)(6v^7x^6)(2v)= | | (-2)(-2)(2x)/-2) | | 5a+40= | | -2(4x-1)=1-x | | 1-7x=5-2 | | (-2a)(-2b)(2c)/-d) | | 3a+24= | | (-2a)(-2b)(-2c)/-2d) | | -1/4y-6 | | (5y-4)(1+y)=0 | | 4x^2-32=-25 | | 18X+2,5(500-18X)=2800 | | (-a)(-b)(-c)/-d)=(abc/-d) | | (-a)(-b)(-c)/-d)=(abc/d) | | 8y^2-24y=0 | | 11x^2+14x-364=0 | | 8y^2-24=0 | | 10=0.2(x+100) | | S=5000(1+0.03)5 | | Z=6x | | 7u+4-3(-2u-1)=5(u-1) | | 9(x+7)=2x-36 | | 17=3(y+4)-8y |