3k+12=21

Simple and best practice solution for 3k+12=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+12=21 equation: 


Simplifying
3k + 12 = 21

Reorder the terms:
12 + 3k = 21

Solving
12 + 3k = 21

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '-12' to each side of the equation.
12 + -12 + 3k = 21 + -12

Combine like terms: 12 + -12 = 0
0 + 3k = 21 + -12
3k = 21 + -12

Combine like terms: 21 + -12 = 9
3k = 9

Divide each side by '3'.
k = 3

Simplifying
k = 3

See similar equations:

| 8w+31=15 | | 7t+5(t-1)=-5+12t | | t+31=84 | | 3j=4(j-2) | | -12-3+(-5)= | | 12=3(3-r) | | A=2(12-4)-5 | | h+51=-2h+15 | | -35-(-15)= | | x^2-19-5x=0 | | A=2(15-3) | | 12x+8y=8 | | -19-(2)= | | 0.20(y-1)+0.02y=0.12y-0.3 | | y=20x+2.50c+3 | | 3(g-2)=-36 | | -8x+3x=-15 | | 17-4+(-3)= | | 8-(4x-5)=2-5x | | x(1+2x)= | | -5-(-5)+9-(-9)= | | 2(F+3)=16 | | 9x^2-12+9=0 | | 3=2r-7 | | 17v-17=0 | | 3.65x=29.2 | | 7x+8=7(x+1) | | g(x)=x^2+4x+4 | | 3k-4b=14 | | Q=a+(m-2)d | | -(11)+1=10 | | 2(v+6)=3v-1 |

Equations solver categories