If it's not what You are looking for type in the equation solver your own equation and let us solve it.
t in (-oo:+oo)
3-6*t-(3*t) = -105 // + 105
3-6*t-(3*t)+105 = 0
3-6*t-3*t+105 = 0
108-9*t = 0 // - 108
-9*t = -108 // : -9
t = -108/(-9)
t = 12
t = 12
| 16=w+4w-9 | | 9+7a+2a=0 | | 1-a+2a=3 | | 17=a-5a+9 | | x+(1-x)=1 | | -2m+10-7m=91 | | -36=2a-5a-9 | | 11=-a+4a+5 | | 2=-5b+6b-6 | | -4m+6-6m=-104 | | 8-2b+5b=29 | | -77=5d+5d+3 | | ln(x-4)=ln(2x-3) | | -3+3x+3x=-27 | | w+5-5w=5 | | -135=5w+7w-3 | | -9+7n+7n=-93 | | 96=5n+6n-3 | | 5b+5+2b=12 | | 1=5m+2m+1 | | -2w+6+4w=-8 | | -3k+8+6k=44 | | -4-d+3d=-18 | | -14=-2x+4x+10 | | 4+5m+6m=125 | | 6-3w-2w=1 | | 4-2x+4x=-2 | | 3b+2+5b=-46 | | 7t-7-6t=-2 | | 7+6a-3a=10 | | 4+6n+5n=70 | | -10+2b+4b=-64 |