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)
3*x+4 = (-1/2)*x-3 // - (-1/2)*x-3
3*x-((-1/2)*x)+3+4 = 0
3*x+(1/2)*x+3+4 = 0
7/2*x+7 = 0 // - 7
7/2*x = -7 // : 7/2
x = -7/7/2
x = -2
x = -2
| -9+6x=5/7x-248/7 | | 3/7x+1=-3/4x+37/4 | | 2x+7=61/8+1/3x | | -8/9+x=2x+10/9 | | 3x-1=-2/7x+85/7 | | 2x-8=9/2-1/2x | | 4-3x=-7x+20/3 | | 3/5x+2=-42+5x | | 9+3/5x=-x+9 | | 1/5x-9=4x+69/5 | | x+1=37+4x | | 2x+1/5=x+43/40 | | 6-5x=4x+96/7 | | 3-5x=4x+2 | | 7x-4/5=3x-67/15 | | 7/9+7x=-7x-1001/9 | | 4x-6=-60/7+7x | | -8+7x=6x-7 | | 6/7x+2=38/77+5x | | -2/5x-10=-66/5+4x | | 4/5x+2=2x+16/11 | | 3/7x+2/9=109/126+1/2x | | 3/10+3/4x=-7x-1079/20 | | 4=s/7-6 | | 2/3x-4=5/6x-14/3 | | 3x-3/7=4x-66/7 | | 1/2x-4=4x-18 | | x+1/5=149/120-2/3x | | x+1=-5/6x-7/15 | | 2/7x+4/7=43/28-x | | 2/3x-1/2=x-3/10 | | -2/3-3x=-x+26/33 |