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)-4 = -74 // + 74
74-(7*m)-4 = 0
74-7*m-4 = 0
70-7*m = 0 // - 70
-7*m = -70 // : -7
m = -70/(-7)
m = 10
m = 10
| -6k+4=-62 | | -3b-8=-2 | | -6n-7=47 | | 10-7w=-11 | | -4b-1=47 | | 7w-6=-83 | | -6+7k=-62 | | 3-6m=3 | | 2+7t=79 | | -2+2m=14 | | 4-6d=-68 | | 6+6k=36 | | 4a+5=-3 | | 3k-7=-28 | | -8+6n=-80 | | -4+2w=-6 | | -2-6a=-14 | | -4b+9=-11 | | 7a+5=-16 | | -4t-6=10 | | 2w-9=5 | | 4+2t=16 | | 5+5w=-15 | | -5d-10=-5 | | -7-7n=-21 | | -3t+2=-16 | | 5b+4=39 | | -4a+8=-32 | | 6n+1=-41 | | 3+3n=33 | | -2+6m=4 | | 2d+3=-13 |