If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4d-4d+4d=12
We move all terms to the left:
4d-4d+4d-(12)=0
We add all the numbers together, and all the variables
4d-12=0
We move all terms containing d to the left, all other terms to the right
4d=12
d=12/4
d=3
| 11x+25=13x+23 | | -1.1x+14=12.9 | | x+67=7x+27 | | 6=10(7+8h) | | 5i(9-9i)=0 | | 3/4+5x=4 | | 14x–56=6x | | x+37=2(x-18) | | a/2-1=3/2 | | 6c+4=16-4c | | 5x-6/3x-9=0 | | 5x-3=4+5 | | -7y+17y+-6y=12 | | Z=4q-12=1 | | 7m+3=5m+11m= | | -7y+17y+-6y=16 | | 2x/(0.8-x)=53.3 | | 5e=6 | | 0.6=x/1.2 | | P-p+4p+2p=6 | | 92=8+7(4x–4) | | 16n+4n=-20 | | 8+9z=2(5-3z) | | 4=-7(z-3 | | 20h+h-20h=7 | | 2x+2x=8+240 | | 19v-15v-12v=16 | | 8x-2=-3x+20 | | 2(w-10)=-20+2w | | 12u+17u-15u-4u+6u=-16 | | 4m-15=3m+10 | | 2(k-7)=k/3 |