If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
5*b+5*b-1 = -71 // + 71
5*b+5*b-1+71 = 0
10*b+70 = 0 // - 70
10*b = -70 // : 10
b = -70/10
b = -7
b = -7
| -17=6m-2m+7 | | 6-7x+5x=2 | | -31=4x+3x+4 | | -6+5d-4d=-13 | | -15=-4b+2b-1 | | 6b+10-4b=28 | | 3k-9+3k=-45 | | 6=-4n+5n-2 | | 34=-4b+6b+10 | | -76=4n+2n-4 | | 8+6k+7k=151 | | -2t-6-7t=-105 | | 3t+5+4t=82 | | 3+7x-x=75 | | t+4+3t=-16 | | 6w-6+2w=34 | | -6+m+7m=10 | | 3b+9+b=41 | | 7a-4+2a=77 | | 5k+6+3k=-10 | | -5m+5+2m=-19 | | 4+5k+3k=92 | | 52=6a+a+10 | | 6t-10+5t=-54 | | 3-7m-m=27 | | -5k-5+k=-5 | | 6-6x+4x=-10 | | 2a+1+3a=51 | | 8=-3x+x+4 | | 47=x-6x+7 | | -3+6n-n=-3 | | -109=-6m-7m+8 |