3k+9=21

Simple and best practice solution for 3k+9=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 3k+9=21 equation: 



3k+9=21

We move all terms to the left:

3k+9-(21)=0

We add all the numbers together, and all the variables

3k-12=0

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

3k=12

k=12/3

k=4

See similar equations:

| 1/3n+6-2/3n=0 | | 5x-x(3/4)=3(x+5) | | -15-2z=13-2z+10 | | x/3=150/100 | | 21/2x=11/2 | | 6(7)^x=100842 | | 7/2+r=9/2 | | (2x-4)^2=32 | | 134+32+34+35=p | | 3.9=t0.39 | | 2^4x=31 | | x-4.5=12.75 | | 9-(2-3y)=6+2y-(5=y) | | 5=n+13/9 | | -6d-17=2(-3d-3) | | w=452{w-7} | | 6.4g+3=1.4g+23 | | -2(3x+5)=x-14-7x+4 | | 3j+5/6=2/3 | | 4(2x+2)=2(4x+6 | | (-21/2)p=-3 | | 134=p+101 | | -21/2p=-3 | | -15c-5-14=-15c-19 | | 3.8g+6=1.8+10 | | -5r-10=-71 | | (3m+6)/3=4 | | 169=20-x | | -m/2+4=16 | | 4y-5=26 | | 134=p+32+34+35 | | 2w-14=10 |

Equations solver categories