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)
(-4/7)*k-1 = -1 // + 1
(-4/7)*k-1+1 = 0
-4/7*k = 0 // : -4/7
k = 0
k = 0
| 4/5x+4/9=76/9 | | 3/7n+3=27/8 | | -6w+6=-48 | | 4k+7=15 | | 5/6+4a=17/6 | | 2a+10=29/3 | | 3m+8=34/5 | | d-1/3=-13/3 | | 1/3+5/7w=31/63 | | 1/6d-4=-47/12 | | 8-3/5m=91/11 | | 4/5+1/3w=9/5 | | 8/9+6/7t=400/693 | | 4n-4=-12/5 | | 3/7+5x=55/14 | | -1/2d-1=0 | | 3/7a+1/3=-38/21 | | 1.3y=y+1 | | 5+6b=1/2 | | 3/10+3x=89/30 | | 2n-1/8=-1/8 | | 2k+8=14 | | 4+5t=34 | | 5m+3/7=143/7 | | 1/2k-2=-11/2 | | 5w+3/5=278/5 | | 9(3x-8)=2(2x-13) | | 6/7m+7=557/77 | | 5k+1/6=71/66 | | 5/7k-2/5=-2/5 | | -2/3b+1/8=65/8 | | -1/6a+2/5=109/360 |