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)
-51 = 9-2*d-(3*d) // - 9-2*d-(3*d)
3*d-(-2*d)-51-9 = 0
2*d+3*d-51-9 = 0
5*d-60 = 0 // + 60
5*d = 60 // : 5
d = 60/5
d = 12
d = 12
| 2m-8+4m=40 | | 1-4m-3m=85 | | 26=-4d+7d-10 | | 4x-1+6x=19 | | 7w-7+6w=84 | | -2b+10-3b=55 | | -10-6b-2b=-26 | | 7+4a+3a=49 | | -112=6m+4m+8 | | 12=2m+m+9 | | 15=4x+4x+7 | | 6+3k+7k=-14 | | -3-3b+4b=1 | | 2x+8+5x=29 | | 6m-8+m=27 | | -32=7k+k+8 | | -49=4k+3k+7 | | 5+3b-4b=-3 | | -3=-6m+7m-8 | | 5m+3+6m=80 | | -1=2w+5w-8 | | 6b+3+6b=-117 | | 32=3k+3k-10 | | 2(a+5)=18 | | -2m-9+4m=-13 | | 5+2n+n=32 | | t-1+5t=-31 | | -4k+10-3k=-74 | | -1+a-6a=9 | | -8-7x+4x=10 | | 4-4x+7x=-14 | | 6+x+3x=-26 |