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-((2/5)*x)+1/8 = -43/40 // + -43/40
2*x-((2/5)*x)+1/8-(-43/40) = 0
2*x+(-2/5)*x+1/8+43/40 = 0
8/5*x+6/5 = 0 // - 6/5
8/5*x = -6/5 // : 8/5
x = -6/5/8/5
x = -3/4
x = -3/4
| 2+x-6x=47/11 | | -5x+10+1/3x=184/3 | | 2+1/7x+4x=241/77 | | 5/7+x+3x=-23/7 | | -3/4+x+5x=-243/4 | | x+1-3x=-21 | | 25/36=-1/3x+2/3x+5/9 | | 4/7+3x+4x=298/7 | | 3/7x-5+2/5x=-407/35 | | 2x-9+1/4x=-54/7 | | -4/7x+3/5+1/6x=41/210 | | 101/15=-1/6x-3x+8 | | 103/5=x+x+3/5 | | -7/15=x-3x+7/10 | | 10=3x+x-10 | | 4x+1/8+3/7x=751/56 | | 2/7x-3+2x=155/7 | | 2/3x+1/6-x=-11/6 | | 1-4/5x+1/3x=25/18 | | 5/7+x+5/7x=-1 | | -x-5+4/5x=-5 | | x+5/6-3x=-43/6 | | 2/7x+2/3+3/5x=769/735 | | 90=2x+6x+2 | | -6/7x+1/2-2/7x=-17/126 | | -5/8+1/3x-4/5x=-131/120 | | (9b-2)-2(4b+4)=-4 | | -81/10=-2/7x-7x-3 | | 2-1/5x+5x=14/25 | | 5/2=-1/4x+3/7x+5/7 | | -5/9-x+2x=22/9 | | 3x+1+4/5x=1 |