21=3-3s

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



21=3-3s

We move all terms to the left:

21-(3-3s)=0

We add all the numbers together, and all the variables

-(-3s+3)+21=0

We get rid of parentheses

3s-3+21=0

We add all the numbers together, and all the variables

3s+18=0

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

3s=-18

s=-18/3

s=-6

See similar equations:

| 6+4(3-k)=3(-2k+9) | | 2x+1=1/3+5 | | 6x+12=8N | | 4(2x+2)=56 | | 5f+6=31 | | −5x=−18 | | 2+34(x-5)=5 | | 4/7(21/8x+0.5)=-2(1/7-5/28) | | 1/4=4x-3 | | 5(y+2/5=-3 | | 4^x=85 | | k^2+8k-12=48 | | 6-4x=6x=8x+4 | | 2t^2-16t+40=20 | | 50=-5(v-9) | | 54=3(r-70) | | 50=-5(v–9) | | 54=4(r-70) | | 13-u/2=14 | | x*3/5=2/5 | | 13–u2=14 | | (3x+15)+(2x+35)=180 | | (2^n)-1=10 | | x+3/5=2/5 | | 5x+2+6x+3=50 | | 2^n - 1=10 | | -70=7(s-12) | | 5(4)^2x=13 | | 2^n- 1=10 | | X+y/2=280 | | 0.045x=9000 | | 8yy=5 |

Equations solver categories