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)
x/7 = -6/7 // + -6/7
x/7-(-6/7) = 0
x/7+6/7 = 0
1/7*x+6/7 = 0 // - 6/7
1/7*x = -6/7 // : 1/7
x = -6/7/1/7
x = -6
x = -6
| 2/3+x=13/9 | | x/-5=-2/3 | | x+2/7=20/21 | | x+1=4/7 | | 2/5+x=12/5 | | 4/9=x+4/9 | | -1/2x=5/16 | | 1/2x=4 | | x-8/9=-98/9 | | x+1/5=31/5 | | 2x-(9)=24 | | x+3/5=13/5 | | x/-6=-4 | | 9-(2x)=24 | | 9-9(2x)=24 | | x/6=-3/5 | | 73/12=x+7 | | 9-2x=24 | | 7x=35/8 | | x-5/9=11/45 | | 1/6x=5/36 | | 3x=-7/3 | | x=1/3 | | x-1/7=59/77 | | x+1/3=34/3 | | x-9/10=-1/40 | | x+3/10=51/70 | | x+1=21/11 | | x-2/7=53/84 | | x-5=-43/8 | | 7x=-21/5 | | -2/5x=4/5 |