If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d in (-oo:+oo)
(-4/7)*d+1/3 = 5/42 // - 5/42
(-4/7)*d+1/3-(5/42) = 0
(-4/7)*d+1/3-5/42 = 0
3/14-4/7*d = 0 // - 3/14
-4/7*d = -3/14 // : -4/7
d = -3/14/(-4/7)
d = 3/8
d = 3/8
| 2m-3/7=-159/77 | | 1+2/7n=23/21 | | 1-7d=-4 | | -6m+2=-8/5 | | 5t+8=48 | | -42/5=6/5(t+1) | | n+10=127/12 | | 5b+2=34/7 | | -1/2a-3/4=-1/2 | | 1/2+w=21/2 | | -1+6/7t=-17/21 | | -1/4n-10=-139/14 | | 1/2d-2/5=-7/5 | | 4+3w=40 | | -7/10+6/7t=431/70 | | -4.40=1.20(t+1) | | -5w+1/2=-29/2 | | 5w-1=31/9 | | 3k-3/5=-63/5 | | -7+1/5a=-28/5 | | 1/2b+2/3=13/15 | | 5k+9=44 | | 2/5+7m=-83/55 | | 9k^2+38k=-8 | | 3-5/7w=47/14 | | -1/7x+1/2=-3/14 | | 10-6a=17/2 | | 1/3n+10=148/15 | | -1/8+3w=-217/8 | | 2/9+7x=191/9 | | 6/7x-1=-2/7 | | -5t-1/9=494/9 |