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)
(-3/5)*b+7 = 71/5 // - 71/5
(-3/5)*b-(71/5)+7 = 0
(-3/5)*b-71/5+7 = 0
-3/5*b-36/5 = 0 // + 36/5
-3/5*b = 36/5 // : -3/5
b = 36/5/(-3/5)
b = -12
b = -12
| -1+2/3b=-5/9 | | 3/4b-4/9=13/72 | | -8+6t=-2 | | 2/7x-10=-358/35 | | 4x^2+168x+1160=0 | | 5/7x-1/6=-1/6 | | 3/7a+3/10=9/14 | | 5/6+6/7b=55/42 | | -1/2+3/5t=5/2 | | 1/2t-1/3=11/3 | | 1/6x+5=41/8 | | 3/5+3/4w=-93/20 | | -6+5k=-47/12 | | -5t+4=16/9 | | 3/7t+9/10=9/10 | | -6/7-2t=-160/7 | | 5b+7/10=113/90 | | 1/2+2k=11/6 | | 3(23+4x)+x=4 | | 6+6d=3 | | 13x-159=3x-9 | | -6+1/2n=-5 | | 4n+10=122/11 | | 1/2b-7=-59/9 | | 9-b=-3 | | -2/7b+3/5=71/35 | | -7+2/3m=-41/3 | | b+10=22 | | 2m+1/9=55/9 | | -1-3/4w=-11/12 | | 1-5/7n=7/12 | | 1/4+3b=121/4 |