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 = 55/9 // - 55/9
x-(55/9)+7 = 0
x-55/9+7 = 0
x+8/9 = 0 // - 8/9
x = -8/9
x = -8/9
| 4+x=34/11 | | 13/3=x+1/3 | | x+5=17/3 | | x-5/6=-35/6 | | x+1=13/9 | | 8/3=x+2 | | x+2/9=74/9 | | 7+x=43/6 | | 1/2x=5/2 | | x-7=-49/8 | | -3/8+x=-59/72 | | 7/8+x=95/8 | | 2/3x=-1/3 | | x+9=59/6 | | x+9=93/10 | | -1/6=x-2/3 | | y=-2/3x+4 | | x-2/9=14/99 | | x-4=-43/12 | | x+7=19/3 | | x+4/5=23/60 | | x-1=-8/11 | | -23/10=x-2 | | -1/2+x=3/14 | | 29/6=x+5/6 | | 9/10+x=7/5 | | -7x=7/2 | | -1/4+x=1/12 | | 12=x+1 | | x+1=7/4 | | 5/21=x-3/7 | | x+1=23/12 |