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)
(-3/10)*z = 2*(1/4) // - 2*(1/4)
(-3/10)*z-(2*(1/4)) = 0
(-3/10)*z-1/2 = 0
-3/10*z-1/2 = 0 // + 1/2
-3/10*z = 1/2 // : -3/10
z = 1/2/(-3/10)
z = -5/3
z = -5/3
| 72=4.5 | | 320+80x=2650 | | 84=.5*21x | | 72=4.5c | | (y+1)/(y^2-y) | | .666x+5=3 | | 4/(1-x)=7/(1+x) | | x^2+y^2=29 | | 4/1-x=7/1+x | | 5x+5=30x+15x+5 | | 7x^2-171x+810=0 | | W/15=8 | | 5u^2+16u=-3 | | -2x+7=-15 | | 6a+5a=-12 | | 8x+5=6x+5 | | 8x=6x | | 7-(2x7)/24+3 | | 5(x+3y)=2x-3 | | x^2-2.75x-5=0 | | -7x-3x+12=-8x-8 | | -7x-3x+12=-8-8 | | 7.5+(1/2)x=(3/4)x | | 12-3y=-6 | | 7.5+(1/2)x=30 | | x+4/5 | | x-5/2 | | x-5/2=x+4/5 | | (51)(40/60)=(54)(x/60) | | -5=-2.5x+10 | | 750-50x= | | -185+35x= |