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)
b/(-4) = 7 // - 7
b/(-4)-7 = 0
-1/4*b-7 = 0 // + 7
-1/4*b = 7 // : -1/4
b = 7/(-1/4)
b = -28
b = -28
| -1+b=2 | | -5=m-8 | | b+9=4 | | 9+w=10 | | d+6=8 | | 4=d+5 | | d+10=22 | | 17=k+8 | | -(2x-2)+9x=58 | | 5x+6z=77 | | -2=t+3 | | -10+d=0 | | 2=w-8 | | -20=m-10 | | 7=m-3 | | 3=a-4 | | -6+w=-6 | | k+8=16 | | -6b=-24 | | d-1=0 | | 16=k+4 | | m-1=5 | | n+6=17 | | t/-2=-3 | | b-6=-13 | | 3+b=3 | | n+1=5 | | -7+w=-14 | | b-10=-11 | | w-5=-16 | | 2+m=5 | | 0=d-7 |