If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4d=256
We move all terms to the left:
4d-(256)=0
We move all terms containing d to the left, all other terms to the right
4d=256
d=256/4
d=64
| 2x+388-4x=284 | | 2-5b=2b+1b | | 8=263t-16t2, | | 4x=3x+x² | | w-13=35 | | 100p-p(^2)=52 | | 3/4+y=15/6 | | ((x*1000)/75000)=0,611155 | | 10y=1000000 | | (x*1000)/75000=0,611155 | | 4(5x-3)-7x=3(6x-4) | | .2z=16 | | 100a=-400 | | 3+3/4x=30 | | 4(5x-3)-7x=3-4(3x-5) | | 3z/7+4=-4 | | 36m-31=149 | | 19c+21=382 | | 50w-2=-252 | | 16h+24=136 | | 5l+7=232 | | 1. 10p=1000 | | 8k−1=15 | | 5x+5=2x*2 | | 2(x−3)=3x−13 | | 7p-9(p=12) | | X=-7(6x)/7 | | X=-76x/7 | | 7p-9p=12 | | 5(2w-7)=17 | | n/3=10-n | | 8x-10=5(x-1) |