If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
19-12 = x/(-8) // - x/(-8)
19-(x/(-8))-12 = 0
1/8*x+7 = 0 // - 7
1/8*x = -7 // : 1/8
x = -7/1/8
x = -56
x = -56
| 1/2(f+y)=f-5 | | m/5=-10 | | 3x-40y=86y | | 8x-2=4x-1 | | 3=12-p | | 2a+8a= | | 3=9-m | | p+0.15p=23 | | 4(2x+1)=3(x+2) | | -n+4=10 | | 6x+40+x=180 | | 99999x+434=1234x-1 | | h-10=-7 | | a^6/a^2 | | 7(5-(7x-10))+8x=0 | | 0.6x+4.8=3.3 | | 8-6x=4+2x | | 2y+3y+2= | | 5x+33=12x-23 | | 2x^2+6x-20= | | 4x=64-48+64/8 | | 5=y/5 | | -5x-2=23 | | 2x^2(x-1/2)(3x+1/3)=0 | | 3+9i/3i | | 0.5(x+90)+0.3x=61 | | 2x-40=y | | 2*x+3=11 | | -10x^2-3x-9=-2x | | 3+t=2t-2 | | x^2-23x-25= | | x*x*x=5 |