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)
-41/66 = (-2/3)*x+(3/4)*x-(2/3) // - (-2/3)*x+(3/4)*x-(2/3)
2/3-((-2/3)*x)-((3/4)*x)-41/66 = 0
(2/3)*x+(-3/4)*x-41/66+2/3 = 0
1/22-1/12*x = 0 // - 1/22
-1/12*x = -1/22 // : -1/12
x = -1/22/(-1/12)
x = 6/11
x = 6/11
| 6/7+2x-x=83/7 | | 1/3x+6-x=8 | | 1/2x+6+1/2x=12 | | x+7/9+3x=107/45 | | 4+x+5x=52 | | -1/2+2x+x=0 | | -x-3/8+x=-3/8 | | -6/7x-3-6/7x=-141/7 | | 2-1/2x+3/5x=221/110 | | -x+4+4x=37 | | 1/3x-2/3+2x=53/36 | | 57/5=3x+3/5x+9 | | 2x-1+1/3x=-53/18 | | 1+1/2x-1/2x=1 | | 33/16=-3/4x-6x-3 | | 1-5x+1/2x=65/2 | | 3x-4/5-1/3x=-106/45 | | -4/7+7x+6x=360/7 | | -1/4+1/2x-x=-7/20 | | 9-1/2x+1/6x=25/3 | | 3+x+3x=23 | | -3/5+1/3x+5x=-89/15 | | 6/7x+10+3x=52/7 | | 81/35=2x-3/7x+2 | | -5x-1/5+7x=-21/5 | | 4x-3/8-4/5x=-143/40 | | -3/7x+9+1/2x=121/14 | | 1-3x+1/2x=1/6 | | 3/4x+6+3x=-21/4 | | 1/3x+8+1/4x=173/12 | | 6+5/6x-2/5x=5/3 | | -6/7+6x-1/2x=419/140 |