If it's not what You are looking for type in the equation solver your own equation and let us solve it.
k in (-oo:+oo)
-((2/7)*k)-1/2 = (-1/2)*k-2 // - (-1/2)*k-2
2-((2/7)*k)-((-1/2)*k)-1/2 = 0
(-2/7)*k+(1/2)*k-1/2+2 = 0
3/14*k+3/2 = 0 // - 3/2
3/14*k = -3/2 // : 3/14
k = -3/2/3/14
k = -7
k = -7
| -5t-9=15-3t | | -5/7w-3/7=2w+24/77 | | 5/8+3/4t=-7t-265/72 | | 5m-10=62-7m | | 5m+1=-3/4m+34/11 | | 4m-6=-6-4m | | 1/4x-2/7=-113/28+2/3x | | k+1/9=157/441+4/7k | | x+5/8=-17/24+2/3x | | x-5=-23/5+4/5x | | a+3/10=-5a+483/10 | | 4m-7=-168/5+1/5m | | 6w-1/2=49/10+3/5w | | 2/7w+3/5=-39/35+2w | | 3-6/7a=4/7a+1/7 | | 3/4-5/7x=-7x+503/84 | | 4/7+2m=7m-31/7 | | 6+4/5k=2k+168/25 | | -1/5m+7/8=-317/40-m | | -6+6x=7x-11/2 | | t+2/7=5t+66/35 | | 7+5/6k=-3k+37/2 | | 1/2(18m-16)=3(2m+4) | | 9/10-1/3d=2/7d+1181/1890 | | 9-5n=5n+47/3 | | 4-a=1/2a+49/16 | | 2/5d+4/7=65/126+1/3d | | 3/10+1/2k=4/7k+13/35 | | -8+2k=7k-63/11 | | 4/5m+4/5=6m-16/45 | | -1-6m=m+76 | | -1/4d-5=d-55/9 |