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)
5*t+3*t-1 = -9 // + 9
5*t+3*t-1+9 = 0
8*t+8 = 0 // - 8
8*t = -8 // : 8
t = -8/8
t = -1
t = -1
| -1+a+4a=-61 | | 1-4k-3k=36 | | -8-2n+5n=28 | | -107=5x+4x-8 | | 6+4d+7d=6 | | 34=3w+w-2 | | 2+4a+3a=-82 | | 29=6x-3x-7 | | 25=5x+4x+7 | | -5x+7+x=43 | | -18=-7a+3a+6 | | 5+3w-5w=17 | | -15=6k-7k-4 | | 60=2d+5d+4 | | 2d+5+6d=101 | | 10-n-3n=50 | | -10=m+4m-10 | | 2-6t+3t=17 | | n-6+n=4 | | -7-5x-7x=137 | | x+x=400 | | 0=-2d+4d+2 | | -7-6b-b=-21 | | 1-3n+2n=-7 | | 7n-2+6n=141 | | -7b-4+5b=-16 | | -2-7w-5w=70 | | -9=3m+2m-9 | | -4d-2-d=-27 | | -41=7x-2x+9 | | m+5+m=7 | | 4a-4-a=20 |