If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d in (-oo:+oo)
(1/2)*d+8 = 13 // - 13
(1/2)*d-13+8 = 0
1/2*d-5 = 0 // + 5
1/2*d = 5 // : 1/2
d = 5/1/2
d = 10
d = 10
| 7n+4=25 | | 2+4k=-18 | | -1/7b+1/10=-53/70 | | -4/9-2w=-35/18 | | 9+6w=93/11 | | -d+1=11/9 | | 3-3/4a=3 | | 1+3/7x=37/28 | | 8+2n=-16 | | -4/5+a=1/5 | | 1/2n+1/7=4/77 | | 2a+1=-21 | | 7/8+2a=167/8 | | 5k-1/2=9/2 | | 5/7+1/7w=8/7 | | -n-6=-37/6 | | 1/2+5m=91/2 | | 1/2-x=1/6 | | -2/3m-6=-6 | | -7m+2=-5 | | 1/3w+7=28/3 | | 6+5x=-34 | | 2/3-1/7a=47/84 | | 4/5n+7=15 | | 3x+15+5x+15=22 | | 4/7t+6=54/7 | | -4/5+5d=-179/5 | | 4/9+b=2/3 | | -1/3k+3/4=-1/4 | | 6m-1=-7/2 | | -1/7d+2/7=10/7 | | -7/10+1/6t=-1/5 |