21=6-3d

Simple and best practice solution for 21=6-3d 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 21=6-3d equation: 



21=6-3d

We move all terms to the left:

21-(6-3d)=0

We add all the numbers together, and all the variables

-(-3d+6)+21=0

We get rid of parentheses

3d-6+21=0

We add all the numbers together, and all the variables

3d+15=0

We move all terms containing d to the left, all other terms to the right

3d=-15

d=-15/3

d=-5

See similar equations:

| (2x+1)(x-4)+13=2x^2-10x | | c4−3=1 | | 11=q/5+7 | | 31-15=4(x-7) | | 7(5n+5)=2(7n-3)+22n | | 2/5f=-20 | | 100+(x-10)=180 | | 105=x-2 | | 45+5y-14=17y-14-3y | | -6=-2+2h | | 3*(3x+6)=x*(5-4) | | 0,2m+9,8=3.5m-0.1 | | 25=-3y+10 | | 75=10y-25 | | 2=r/2+5 | | 5x+1=109.7+x | | -2m-5m-8=3+-7+m | | _4x+7x_20=3x+1_x | | -37=10x+11 | | 10=4(20a-5)+10a | | 4x-9=5x×7 | | .5(8x-6)+3x=10+2x-8 | | 6(x+1)=73 | | _4+7x_20=3x+1_x | | (3x+1)-(2x-5)=3(5-x) | | (2x-4)+(3x+1)=0 | | R=6(b-8) | | 8x^2+197x-75=0 | | -5+4(p+1)=15 | | 4x-1323= | | 7x+40=3x=112 | | 7(x-4)+2=5x+2(x-1) |

Equations solver categories