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)
3*x = -7/3 // + -7/3
3*x-(-7/3) = 0
3*x+7/3 = 0
3*x+7/3 = 0 // - 7/3
3*x = -7/3 // : 3
x = -7/3/3
x = -7/9
x = -7/9
| 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 | | x-1=-11/6 | | x-1/5=-11/5 | | 28/3=x+10 | | 2/5+x=-13/30 | | 3+x=43/12 | | x+8=22/3 | | -5/6+x=37/6 | | 3+x=13 | | x+5/8=31/24 | | x+3=11/3 | | -6x=-48/11 | | x+3/5=53/5 | | x-4=-41/9 | | 6+x=50/9 | | x+2/3=-4/3 | | x+7=50/7 | | 17/2=x+8 | | x+3=10/3 | | 2/7x=6/35 | | x+1/2=13/2 | | -1/2+x=7/18 | | 88/9=x+7/9 |