k+(-21)=-15

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Solution for k+(-21)=-15 equation: 


Simplifying
k + (-21) = -15
k + -21 = -15

Reorder the terms:
-21 + k = -15

Solving
-21 + k = -15

Solving for variable 'k'.

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

Add '21' to each side of the equation.
-21 + 21 + k = -15 + 21

Combine like terms: -21 + 21 = 0
0 + k = -15 + 21
k = -15 + 21

Combine like terms: -15 + 21 = 6
k = 6

Simplifying
k = 6

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