If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
7*m+1 = 57 // - 57
7*m-57+1 = 0
7*m-56 = 0 // + 56
7*m = 56 // : 7
m = 56/7
m = 8
m = 8
| 6+4m=6 | | -6d+5=77 | | 6-2a=-14 | | 6k+6=48 | | 10+7d=24 | | 8-7d=29 | | 5a-2=-47 | | 2m-2=-8 | | 4n+7=-17 | | -5-4x=-49 | | 2+7m=-12 | | -6k-3=-75 | | 4b+5=-19 | | 10+7a=38 | | 10+4t=38 | | 10+7d=-67 | | -6a+10=-56 | | -6d+1=-11 | | 6w-7=11 | | 5a+3=53 | | 8+5k=8 | | 6+5k=11 | | 4a-4ax^2= | | -4x+7=-25 | | 5k-9=6 | | 2a-6=-6 | | 6b-3=-3 | | 3w+3=15 | | -7a-6=-48 | | -10-3t=26 | | -2t-4=-4 | | -9+4n=-25 |