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)
2*d-7 = 35-5*d // - 35-5*d
2*d-(-5*d)-35-7 = 0
2*d+5*d-35-7 = 0
7*d-42 = 0 // + 42
7*d = 42 // : 7
d = 42/7
d = 6
d = 6
| 3b+7=7b+3 | | 7k+6=15+6k | | 6t-1=-81-4t | | -6+6n=3n+12 | | -x+6=-54+5x | | 6+w=7w-60 | | 5w-6=4w+5 | | w+6=3w+6 | | 3a+2=-13+6a | | 3+6b=2b-13 | | 5+2m=m+8 | | 5a-4=0+a | | 7+3x=7x-25 | | -4x-1=20-x | | -7k+2=38-3k | | 7t-4=-6t-160 | | 3d+2=d+14 | | -10-4x=4x-42 | | -7t+10=3t-90 | | 4b-6=42-2b | | 3d-7=-3d-7 | | -2+5k=-3k+38 | | -4+t=3t+20 | | -2+4x=6x-10 | | 1+3b=-3b-11 | | 6w+4=-7w+160 | | 1+6m=5m+10 | | 2-5a=3a-14 | | a+8=-8-3a | | -2m+1=m-32 | | 4x+2=8+3x | | 2m+7=34-m |