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)
(2/5)*a+7 = 13/5 // - 13/5
(2/5)*a-(13/5)+7 = 0
(2/5)*a-13/5+7 = 0
2/5*a+22/5 = 0 // - 22/5
2/5*a = -22/5 // : 2/5
a = -22/5/2/5
a = -11
a = -11
| -7w-10=-45 | | -5/7m+2/5=164/35 | | 8+2/5n=118/15 | | 5/7-2x=-37/7 | | 7n+2/5=37/5 | | -t+2=30/11 | | 5+2n=19/3 | | -1/4-1/3d=1/12 | | 5a+1=-54 | | 5n-10=-9 | | 7t+4/7=-41/14 | | 6b-2/3=52/3 | | 3a+10=-5 | | 6n+2=0 | | -2/3m-3/5=71/15 | | -3/7x+1/5=-173/35 | | -4/7-2/3m=-82/21 | | -7-6p=-25 | | 6t+4=22 | | -5/7k+1/4=-153/28 | | -m-1=11 | | 5/7t+9=456/49 | | -2/3w-4=-14/3 | | -1/2k-6=-17/2 | | 7+2/3d=67/9 | | 3a+4=20/3 | | 6/7t-1/3=5/147 | | -1/3-4t=-61/3 | | 1/2b-6=-1/2 | | x+21=7 | | 2/5t+5/7=18/35 | | 2/3d+5=133/27 |