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)
W/3 = 12/(-4) // - 12/(-4)
W/3-(12/(-4)) = 0
W/3+3 = 0
1/3*W+3 = 0 // - 3
1/3*W = -3 // : 1/3
W = -3/1/3
W = -9
W = -9
| 15x^2+51x=42 | | (6x+7)+(6x+5)= | | 16+w=-17 | | W-9=-17 | | -4k+3.6=7.6 | | -11=-w | | 5r+r+4=16 | | 7+5x=10-47 | | -4/5y=8 | | 3(5/6)a+(4/9)=0 | | -3*-400/3 | | 21x-1=4(5x+2)-7 | | q=2h+2w | | -12y=144 | | 8x-89=6x-4 | | 6+6x=30 | | kx^2-ky^2+kz= | | -31+y=-32 | | -5x-4x= | | x^2-x-27=0 | | -10X-37=30 | | 18b-8b-4=6 | | 6x^2-30x-144=0 | | (2x-9)+(27-4x)=90 | | X^3-5x^2+8=0 | | ax-ay+az= | | Y+28=46 | | 2.3(x+1.4)=-96 | | .3x-.1=.2x+3 | | 72=-3m | | 5x^2-3xy+7xz= | | (-64)^2/3 |