-3k-3=21

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Solution for -3k-3=21 equation: 


Simplifying
-3k + -3 = 21

Reorder the terms:
-3 + -3k = 21

Solving
-3 + -3k = 21

Solving for variable 'k'.

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

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

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

Combine like terms: 21 + 3 = 24
-3k = 24

Divide each side by '-3'.
k = -8

Simplifying
k = -8

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