9+d=21

Simple and best practice solution for 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 9+d=21 equation: 


d in (-oo:+oo)

d+9 = 21 // - 21

d-21+9 = 0

d-12 = 0 // + 12

d = 12

d = 12

See similar equations:

| m+62.3=20186.7 | | -9+t=-18 | | b-2=9 | | 2a^2-24a+72=98 | | 20x+x^2=85.9375 | | 2x^2-24a+72=98 | | w+9=4 | | -4+d=-2 | | 2=m-1 | | -4d=-12 | | 1848/21 | | 2.3y=43 | | 5(1-x)-2(x+4)=3-2x | | -1+t=-12 | | a-1=-5 | | 2x-3=4x-3 | | m+2=5 | | -1=a-9 | | -3+m=-10 | | 2+b=-9 | | 5(x+1)+1=12(x-3) | | 12=b+7 | | m+8=15 | | 4+n=15 | | -6m=54 | | z^2-19=0 | | w+6=8 | | 10=b+7 | | -4k=24 | | r+43=28 | | 5(2b-1)-3=x+7 | | -4(a-5)=5-a |

Equations solver categories