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*x+x-(2/7) = -149/7 // + -149/7
2*x+x-(2/7)-(-149/7) = 0
2*x+x-2/7+149/7 = 0
3*x+21 = 0 // - 21
3*x = -21 // : 3
x = -21/3
x = -7
x = -7
| -2/5-5x+1/2x=-47/5 | | 7x=x^2-5 | | 2/3+6x+4/7x=1258/231 | | 3/7x+2+3x=142/35 | | -2/3x+2/5-1/2x=-23/30 | | -x+1/3-6x=-146/3 | | -49/9=3x-6x+5/9 | | 10-2/7x+2/5x=1042/105 | | 2/3=4/5x-5/6x+9/10 | | -223/3=-7x-1/3x-1 | | 5x+1/5-1/2x=-313/10 | | 10+2x+x=47/4 | | -1/2x+1/2+x=1/2 | | -2/7-6x+7x=18/35 | | 6x+2/3+6/7x=-1714/21 | | x+2/9+4/7x=113/63 | | 5x+4/7+2x=298/7 | | 5x-2+1/2x=-27/8 | | 4=-x+5x+1 | | 7-6x+3/7x=-185/7 | | -3/4x-7+4/5x=-37/5 | | 31/2=3x+x-1/2 | | 1/2x-3+3x=1/2 | | -8+1/5x+2x=14 | | -7x+1/8-x=-255/8 | | 207/5=4/5x+4x+3 | | -5/6+x+x=-41/6 | | 8/7=3x+5/7x-10 | | -6/7x-1/2+2/7x=-71/70 | | 17/6=-1/3x-3x+1/2 | | 29/45=2x-2/3x+1/5 | | x-2+3/7x=-8/7 |