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-3 = (-2/3)*x-(139/33) // - (-2/3)*x-(139/33)
x-((-2/3)*x)+139/33-3 = 0
x+(2/3)*x+139/33-3 = 0
5/3*x+40/33 = 0 // - 40/33
5/3*x = -40/33 // : 5/3
x = -40/33/5/3
x = -8/11
x = -8/11
| -3+x=-8 | | -3+t=-4 | | -3+n=5n-3 | | -3+n=2 | | -3+m=-27/10 | | -3+m=-25/12 | | -3+m=-7 | | -3+m=-6m+18 | | -3+k=-27/10 | | -3+k-4k=-9 | | -3+d=-24/11 | | -3+d=-11/4 | | -3+b=-7 | | -3+b=-11 | | -3+a=-8/3 | | -3+a=-11/3 | | -3+a=-4 | | -3+7t=-1 | | -3+7t+4t=-23/4 | | -3+7n-2/3n=-31/4 | | -3+7d=-13/2 | | -3+6x=69 | | -3+6x=-9 | | -3+6t+5/6t=73/3 | | -3+6k-5k=-5/2 | | -3+6k+6/7k=27/7 | | -3+6/7x=4x+221/7 | | -3+6/7x=-87/7 | | -3+5x=-7/9 | | -3+5x+3/7x=81/49 | | -3+5t=7t-8/3 | | -3+5n=-13/11 |