-3-9k=-21

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Solution for -3-9k=-21 equation: 


Simplifying
-3 + -9k = -21

Solving
-3 + -9k = -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 + -9k = -21 + 3

Combine like terms: -3 + 3 = 0
0 + -9k = -21 + 3
-9k = -21 + 3

Combine like terms: -21 + 3 = -18
-9k = -18

Divide each side by '-9'.
k = 2

Simplifying
k = 2

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