If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
1-(2*n) = -9 // + 9
1-(2*n)+9 = 0
1-2*n+9 = 0
10-2*n = 0 // - 10
-2*n = -10 // : -2
n = -10/(-2)
n = 5
n = 5
| 7d+3=-60 | | 9+3k=27 | | -9-3b=15 | | -4d+8=-36 | | -7-3x=-43 | | 5-4b=-19 | | 10+2n=30 | | -3w+10=37 | | 7+4t=-33 | | -5k+7=17 | | 4t+6=10 | | 9+7d=79 | | -2+5n=-52 | | 4d-1=39 | | 4+2w=26 | | 5/16x-1/5x+4=7/10x | | -4a+4=-4 | | 5m+1=51 | | -4m-2=-22 | | -10-4x=-10 | | 3+4a=11 | | -10+7k=-3 | | -3k+10=-20 | | -3m+9=6 | | -5b+2=-38 | | -5x-1=-1 | | 2m-1=-19 | | -10-6k=-34 | | -6+4m=-6 | | -2d-1=-21 | | 5a+10=-40 | | 10-6a=22 |