If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a+5/6 = 13/30 // - 13/30
a+5/6-(13/30) = 0
a+5/6-13/30 = 0
a+2/5 = 0 // - 2/5
a = -2/5
a = -2/5
| 73/8=w+10 | | 6b=12/5 | | 2/5+d=-1/5 | | m+7=0 | | 2/5b=2 | | -6+t=-57/11 | | 3w=-2 | | 11/9=t+5/9 | | t+9=47/5 | | 6+m=15 | | -6+m=-6 | | m+1/2=-23/2 | | 1+n=-11 | | b+6=8 | | 103/88=n+5/8 | | 35/9=b+8/9 | | n-4=-34/11 | | 3/5k=2/15 | | w+2=17/6 | | b+1=13 | | t-2=10 | | w-6/7=36/7 | | n+10=5 | | a-1/9=107/9 | | n-3=-15/4 | | 4=b-5 | | -1+w=2 | | 9/10=b+3/10 | | b+3/7=38/7 | | b-7/9=-19/36 | | 1/2+x=9/10 | | -11/6=k-5/6 |