2d+9-d=21

Simple and best practice solution for 2d+9-d=21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2d+9-d=21 equation: 


d in (-oo:+oo)

2*d-d+9 = 21 // - 21

2*d-d-21+9 = 0

d-12 = 0 // + 12

d = 12

d = 12

See similar equations:

| -2+2t+7t=16 | | -5+7d-5d=-11 | | 24=2a+2a-8 | | -7+6a+6a=-19 | | -7+5w+7w=17 | | -11=-3a+5a+9 | | 5a-8+4a=-17 | | 5+n+2n=-10 | | 3d-3+2d=-3 | | 2-5n+4n=5 | | -3w-8+2w=-5 | | 4w+10-5w=18 | | 9=5a+4a-9 | | 10=7w+3w-10 | | 2t+3+5t=-4 | | 4=2x-5x+4 | | 9-4k+3k=14 | | 9=3m-4m+2 | | 78=7m+3m+8 | | 5w+7+3w=31 | | 77=5a+5a-3 | | 9+4k+7k=119 | | 2-6x-6x=-58 | | m+1+4m=1 | | 117=6k+4k+7 | | 7-2n-4n=55 | | 93=6n+6n+9 | | 3m-8+5m=88 | | -1+3x+7x=59 | | 6+4m+2m=-42 | | 67=-7t-4t+1 | | 16=-3b+5b-2 |

Equations solver categories