12k-21-8k-20=7

Simple and best practice solution for 12k-21-8k-20=7 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 12k-21-8k-20=7 equation:


Simplifying
12k + -21 + -8k + -20 = 7

Reorder the terms:
-21 + -20 + 12k + -8k = 7

Combine like terms: -21 + -20 = -41
-41 + 12k + -8k = 7

Combine like terms: 12k + -8k = 4k
-41 + 4k = 7

Solving
-41 + 4k = 7

Solving for variable 'k'.

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

Add '41' to each side of the equation.
-41 + 41 + 4k = 7 + 41

Combine like terms: -41 + 41 = 0
0 + 4k = 7 + 41
4k = 7 + 41

Combine like terms: 7 + 41 = 48
4k = 48

Divide each side by '4'.
k = 12

Simplifying
k = 12

See similar equations:

| 9.2+x=0.8 | | 1.25(1.25)= | | 3(X-3)=6x-4+3(7-X) | | x+4y=-18 | | 8v-6v=6 | | 105+12x=285 | | -6x^2-19x-10=0 | | 9x+6x=5x+30 | | 5(X+8)=8(X+1) | | -3x+6-5=-5x-(2x-4)+5 | | 3x=log(0.001)10 | | 4+x-8=36 | | 16x-10y=26 | | 105+2x=285 | | f(x)=6-8x | | 0=-4x^2+2x^3 | | 3x-4x-14=9 | | 40x^22+190x-50=0 | | 2(-4y+4y)+8y=8 | | 4/7+1/3x=4/21 | | 9x+4-3x=28 | | 13=2x-9 | | 3x^2+2kx-2k=0 | | R(X)=-0.707x^3+27.4x^2-159.7+414.7 | | 6ln(2x+4)=20 | | V=lwhforV | | 8p+3p-3p-8=16 | | .75x=520 | | 5+6x=-47 | | X-3=54 | | 8a+2a=22 | | 7.9x-11.3=4.5 |

Equations solver categories