21=(-4)+k

Simple and best practice solution for 21=(-4)+k 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=(-4)+k equation:


Simplifying
21 = (-4) + k
21 = -4 + k

Solving
21 = -4 + k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
21 + -1k = -4 + k + -1k

Combine like terms: k + -1k = 0
21 + -1k = -4 + 0
21 + -1k = -4

Add '-21' to each side of the equation.
21 + -21 + -1k = -4 + -21

Combine like terms: 21 + -21 = 0
0 + -1k = -4 + -21
-1k = -4 + -21

Combine like terms: -4 + -21 = -25
-1k = -25

Divide each side by '-1'.
k = 25

Simplifying
k = 25

See similar equations:

| 37B-83=6B+72 | | 3(s-2)=12 | | 25A+8=4A+71 | | 10=n+(-12) | | x=(6)-1 | | 2y+2=15 | | (X+4x+8)+(X+4x+8)=546 | | d+4=(-2) | | 17=4+d | | (n-2)5=4n | | 25=a-(13) | | 51-15p=84 | | (-40)=m+(-24) | | -3d-5=-7 | | 7*(E-9)+2E=36 | | y^2-18y+225=0 | | 15=6f+3 | | 0=24+k | | 9*(D+5)-2D=143 | | 3x+10x+2-5x=2x+2x-2 | | 3x^3=125 | | 8k-(6k-10)= | | (-45)=(-22)-d | | 21a=168 | | 8*(C-7)-3C=29 | | (-19)+d=(-41) | | 18x=48 | | u+24=32 | | 2*(B+10)+2B=84 | | 2y=y-1+7 | | n-19=-11 | | 4/0.6=0.6x/0.6 |

Equations solver categories