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)
7*d+7 = 35 // - 35
7*d-35+7 = 0
7*d-28 = 0 // + 28
7*d = 28 // : 7
d = 28/7
d = 4
d = 4
| -9-6w=-75 | | -10+7t=46 | | -4t+1=-19 | | 5b+4=-11 | | -6w+3=-69 | | -4d+4=-28 | | -5k-6=29 | | -3+7a=4 | | 3x+2+4x+5=5x+4+2x+3 | | 4t+6=-38 | | 6p-15= | | 5w+1=-9 | | 10-6d=-2 | | 7a+1=57 | | 5-7n=-51 | | -1-5x=24 | | -7w+7=-14 | | 15-a= | | -3d+5=32 | | 6n+8=-22 | | -4n-10=-10 | | 5n-7=18 | | -9+4a=35 | | 10+5a=15 | | 4a= | | 4m+7=-21 | | -6w-8=-44 | | 10+6m=22 | | -2w-8=-20 | | 6b+9=-63 | | -7m+7=-56 | | 6-2k=-10 |