If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21+5d=96
We move all terms to the left:
21+5d-(96)=0
We add all the numbers together, and all the variables
5d-75=0
We move all terms containing d to the left, all other terms to the right
5d=75
d=75/5
d=15
| -4x+6(x-8)=-38 | | 5(a+3(=15 | | (x+15)+(4x-45)=180 | | √x=121 | | -7.5x+.58=-2.42 | | 4/4=k/3 | | 2/5=(1/2)x | | 4v+5=77 | | 5/6=n/8n= | | 5x-3=2x+12= | | 9x+4+16-4=80 | | v/11+17=18 | | 22=f/3 | | -13+x=-31 | | 180=3x+2x+10 | | 23+6x-18+90=180 | | -5)x-6)=15 | | -1(x+4=20+3x | | Y=-4.5x+12 | | 7y+14=34 | | −7.5x+0.58=−2.42 | | 9p–8=20 | | 16n=-320 | | v+16/7=6 | | 6x+8=38-4x+ | | x=1700+.10x | | 2a-19=32-8a-1 | | 3m-7=12 | | x-(3-x+)=-x-6 | | -0.3c+0.4=4.6 | | 18=4b+10 | | 57+9x-11=80 |