If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
2/5-((2/5)*x) = 1/3 // - 1/3
2/5-((2/5)*x)-(1/3) = 0
(-2/5)*x+2/5-1/3 = 0
1/15-2/5*x = 0 // - 1/15
-2/5*x = -1/15 // : -2/5
x = -1/15/(-2/5)
x = 1/6
x = 1/6
| 1/5n+8=79/10 | | 9+2/7b=61/7 | | -6m+10=134/11 | | m+1=7 | | 2n+4=22 | | -1/7w+8=166/21 | | -4/7x+9=51/7 | | -2/3+4k=58/21 | | -1/4-4m=79/4 | | -3/5-6t=327/5 | | 7+3/4x=7 | | 7w+3=-6/5 | | 2b+1/3=19/21 | | -k+1=-6 | | 1/9-4k=109/9 | | -t+1=-4 | | 4d+10=34 | | 4/5+5b=33/10 | | 6+3k=87/11 | | -1+4b=19 | | 2/7d+1/5=67/210 | | 1/3t+7=257/36 | | -1+4m=-9 | | -1/2w-5/8=-23/24 | | -5t-5=-65 | | 2/5n-4=-104/25 | | -4/7d+5/8=-221/56 | | 1/2+4d=-71/2 | | 6k+2/5=76/15 | | 6+1/2k=67/11 | | -5/6w+1/2=-19/2 | | -7x-4/5=-389/5 |