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)*x-((4/7)*x)-2/9 = -814/2205 // + -814/2205
(2/5)*x-((4/7)*x)-2/9-(-814/2205) = 0
(2/5)*x+(-4/7)*x-2/9+814/2205 = 0
36/245-6/35*x = 0 // - 36/245
-6/35*x = -36/245 // : -6/35
x = -36/245/(-6/35)
x = 6/7
x = 6/7
| 6/7-2/7x-7x=9/70 | | 21/10=4/5t+1/2t+4/5 | | (n-7)*7=49 | | 1-3x+2/7x=-31/7 | | -1/2+k+1/3k=37/6 | | 7t-5/7+7t=230/21 | | 4-2/3w+w=23/3 | | 1/2m+3/10+4/5m=-1 | | 9/14=a-2/5a+1/7 | | d-1/6+5/7d=-265/294 | | 629/10=6a-4/5a+1/2 | | 6x-9=2r+35 | | -75/28=-d+3/4d-3/7 | | -1+6x+6/7x=-439/7 | | -21/5=4d+3/5d+2/5 | | 3/4-2/7a-1/3a=-509/84 | | -23/7=4/5t+4t+5/7 | | x^3+4x^2+2x+4=0 | | 3/4+3w+2/3w=37/9 | | x*29=500 | | 6m-3-6/7m=33 | | -5/7n-4+1/2n=-314/77 | | 6/7a+9-1/7a=88/7 | | 1/3-n+6n=38/9 | | 6-5m-3/5m=226/5 | | 15+6x=16x-5 | | 2x+39=4x+3 | | 4/5t-7/8+6t=-3027/40 | | 4/5k+1+3/5k=-2/5 | | 135/2=-7a+1/2a-4 | | 359/21=d+2/3d+3/7 | | -17/84=-3/7b-1/4b+1/4 |