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)
(5/6)*x+2/7 = 529/504 // - 529/504
(5/6)*x+2/7-(529/504) = 0
(5/6)*x+2/7-529/504 = 0
5/6*x-55/72 = 0 // + 55/72
5/6*x = 55/72 // : 5/6
x = 55/72/5/6
x = 11/12
x = 11/12
| -5/7x+1=22/7 | | x+9=83/9 | | 5x+1/2=61/2 | | 4/5x-8=-122/15 | | 5x-5/9=40/9 | | -7x+1/3=64/3 | | -4/9+6/7x=-58/9 | | 3/4x+5/9=-115/36 | | 6x-7=-1 | | 1/3x+9=53/6 | | 4+1/2x=71/16 | | x-4/7=73/7 | | 3/4+7x=-197/36 | | -6-6x=66 | | 3x-5=-82/11 | | 8-1/2x=11 | | -6+2/7x=-40/7 | | 1/7x-7=-246/35 | | 5x(3-2)=3 | | 7x-2/3=40/3 | | -2/7x-1/2=-79/126 | | -1/2x-4=-4 | | 1/2x-2=-11/2 | | 1/8+x=-15/8 | | 5x-6=-7 | | 5y(2y-3)+(2y-3)=(5y+1)(2y+3) | | 10+2x=29/3 | | 5x+4/5=29/5 | | 7x+6=-64 | | 2x+7=49/6 | | -2/3-5x=-62/3 | | 2/7+1/3x=110/189 |