If it's not what You are looking for type in the equation solver your own equation and let us solve it.
w in (-oo:+oo)
(3*w)/20 = 12 // - 12
(3*w)/20-12 = 0
3/20*w-12 = 0 // + 12
3/20*w = 12 // : 3/20
w = 12/3/20
w = 80
w = 80
| 4x+6=78-8x | | 26+3y-4=15y-13-5y | | 23x^2-12x+21=0 | | 49x^2-14x-48=0 | | 34x^2-34x+65=0 | | (20t^3+45t)/(20t+10) | | 5(4x-7)=6(x-2) | | x+3=11y | | x+5y=15y | | 5/x=12 | | -m=7 | | 0,5*0,4*0,4= | | 0+N=3 | | 156/3 | | 9+F=12 | | 4x+4+3x-11=3x+19+3x-5 | | x^2-4/9=0 | | 1/5k=-1/3 | | 50x-75x=2-125 | | 0.5x+1.25=0.75x+2 | | 6+R=10 | | 2(1/2+x)=3 | | 1/4y=5 | | 31/35=3x+1/2 | | Q+8=8 | | 8(x+3)=2(3x+5) | | 6+p=15 | | 4x+10=3x+28 | | 2y^2+13y=15 | | t^5-t= | | 7d=24 | | 4+n=11 |