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)
1 = -3*t-(6*t)-8 // + -3*t-(6*t)-8
6*t-(-3*t)+1+8 = 0
3*t+6*t+1+8 = 0
9*t+9 = 0 // - 9
9*t = -9 // : 9
t = -9/9
t = -1
t = -1
| 42=7b+2b-3 | | -29=5d-3d-9 | | -1+n+4n=-41 | | 2=3w-4w+8 | | -20=-3w-3w+4 | | 55=-2n-6n+7 | | -10+4d+d=35 | | 7+3w+4w=21 | | 5+n+4n=45 | | 5+5w+2w=-9 | | 21=-w+4w+9 | | -7m+3-2m=-33 | | 10=6w-4w-2 | | 7=-2t+7t+2 | | 44=3k+6k+8 | | 7-5m+7m=19 | | -3n+7-n=-13 | | 5+7n+7n=5 | | 3w+5-2w=16 | | 6b+3+b=24 | | 4+4x-3x=-6 | | 58=6w+6w-2 | | -87=7x+x+9 | | x+1+x=-23 | | 7+4w+5w=-83 | | -3=4m+2m+9 | | -11=-6a+4a+3 | | -10-t-5t=44 | | 79=2m+6m-9 | | -6k-5+5k=-4 | | 5a+2-6a=-4 | | -6a+2=26 |