If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7d=15
We move all terms to the left:
7d-(15)=0
We move all terms containing d to the left, all other terms to the right
7d=15
d=15/7
d=2+1/7
| 2(180-x)=5(90-x)+24 | | (3x-10)°=(3x-26) | | 4(x-6+4)=5x-4 | | x(7x-6=(7x+9)(x-2) | | 5(n-8)=-65 | | 57=x-36 | | 3-5x=3+x=6x | | 10x+18-8x+4=0 | | 30+5x=10+10x | | 63=f+12 | | 428+x=689 | | 20q=+20 | | 6j=–8+8j | | (9x+19)°=(10x+4) | | 4/3=y/12= | | -61=5k-1 | | 4z+9+z=24 | | k=7=25 | | -8x-2(x+8)=-86 | | 3-9x=183 | | 1+1x-30=190 | | -0.75x+0.55x=4.4 | | 6(2s+1/3)=2(12s+13) | | 60x=274 | | 2m+3=35 | | 11x-22=2 | | 34-8x=-5(4+7x) | | 10+18-8x+4=0 | | 6x-4(4x-8)=102 | | -184=-8(7-2n) | | 3(7x–9)–19x=-15 | | (2x)+42=180 |