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)
4*a-((5/7)*a)+10 = 396/35 // - 396/35
4*a-((5/7)*a)-(396/35)+10 = 0
4*a+(-5/7)*a-396/35+10 = 0
23/7*a-46/35 = 0 // + 46/35
23/7*a = 46/35 // : 23/7
a = 46/35/23/7
a = 2/5
a = 2/5
| -103/280=-3/5a-1/7a+3/8 | | 10+1/5m+5m=341/25 | | -2/9-4x+x=-272/9 | | 122/15=4/5b-4b+6 | | -5/6+6/7t+2/3t=-437/294 | | 5=t-2t+6 | | 0.16/2.08 | | -8=-3/7t+3/7t-8 | | -58/15=-4w-2/3w+4/5 | | -k+3-5/6k=61/24 | | 3/7+5/7a+3/5a=73/63 | | 2/5w+2/3-6w=-158/15 | | 773/72=-5/6n+5n+9 | | 1/7-2b+6b=22/7 | | x^3+7x^2+7x-15=0 | | 29/9=4n+n-2/3 | | n-3/5+4n=17/5 | | -214/35=-k+3/7k-6 | | 2/5+5k+3/4k=813/20 | | -2/5a-7/9-1/3a=-7/9 | | 3/5-1/2t-1/4t=21/10 | | 3+1/3b+b=-7/3 | | 1/6x+3/10+1/2x=149/30 | | 5/7d-2/5+1/3d=426/35 | | 1/2+2k+6k=49/2 | | 81/2=3d+1/4d+8 | | -3/8+2k+1/2k=117/8 | | 4a-1+2a=-4 | | 4a-4/9+7a=91/18 | | 3/5b-8/9+b=-904/45 | | 5/11=4n-3n+1 | | 622/945=-1/6d+3/7d+3/5 |