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)
(-2/3)*x+2 = 34/21 // - 34/21
(-2/3)*x-(34/21)+2 = 0
(-2/3)*x-34/21+2 = 0
8/21-2/3*x = 0 // - 8/21
-2/3*x = -8/21 // : -2/3
x = -8/21/(-2/3)
x = 4/7
x = 4/7
| -1+4x=-11/3 | | -7/10-7x=-27/10 | | 10+3/7x=794/77 | | 6x+2/3=46/15 | | -5x-1/3=-13/4 | | -5/7x-5/6=-1/3 | | 8-2/3x=166/21 | | 5/7x-8/9=-526/693 | | -1/3+6/7x=-5/42 | | 2/3x+4=13/3 | | 2/5x-6=-10 | | 6x+1=19/3 | | 6x+2-3x-6= | | 1/10+6/7x=5/14 | | -5/7+3/4x=-19/56 | | 7/8+3/4x=43/8 | | 5/7x+7=191/28 | | -6x+9=37/3 | | 1-6x=-71 | | -1/3+1/5x=-1/3 | | 5x-2/3=-182/3 | | 5/7x+8=219/28 | | 6x-2/3=178/3 | | -1/2x-2/5=-32/5 | | 6x+4=11/2 | | 6/7x+5/9=62/63 | | 3x-1/3=17/3 | | 6x+1=8/5 | | 5x+5/6=95/24 | | -1+3/7x=-17/14 | | 1/3x-4=-62/15 | | 7x+1/4=-195/4 |