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+5*n+1 // - 2*n+5*n+1
1-(2*n)-(5*n)-1 = 0
1-2*n-5*n-1 = 0
-7*n = 0 // : -7
n = 0
n = 0
| 2+2t-3t=4 | | 86=5b+4b+5 | | 7x+7-6x=-5 | | 2n+5-n=-6 | | -9x+3=-3x+51 | | -5x+22=42 | | 16=n-2n+5 | | -2m-9+6m=23 | | 1-5k+k=21 | | -6b+6-6b=-114 | | -6d+3+5d=6 | | 10=3x-2x+9 | | 7n+10+7n=-144 | | 5(4x+3)=-x+36 | | 1=5(x-5)+1 | | -3x-4=x+4 | | -4x-1=23 | | 5-2a+6a=25 | | -2a+6-7a=-84 | | -5x+16=6 | | 142=7w+7w+2 | | 7+3a+2a=37 | | -5n+3+4n=1 | | -49=-7b-2b+5 | | b-1+5b=53 | | x-1=-3x+11 | | 6=2(2x+5) | | -2x-14=-24 | | -7+6n-7n=1 | | 4+7k+k=-52 | | 6k+7-5k=15 | | 5a+10-3a=28 |