k+-2(k+-30)=9k

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Solution for k+-2(k+-30)=9k equation: 


Simplifying
k + -2(k + -30) = 9k

Reorder the terms:
k + -2(-30 + k) = 9k
k + (-30 * -2 + k * -2) = 9k
k + (60 + -2k) = 9k

Reorder the terms:
60 + k + -2k = 9k

Combine like terms: k + -2k = -1k
60 + -1k = 9k

Solving
60 + -1k = 9k

Solving for variable 'k'.

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

Add '-9k' to each side of the equation.
60 + -1k + -9k = 9k + -9k

Combine like terms: -1k + -9k = -10k
60 + -10k = 9k + -9k

Combine like terms: 9k + -9k = 0
60 + -10k = 0

Add '-60' to each side of the equation.
60 + -60 + -10k = 0 + -60

Combine like terms: 60 + -60 = 0
0 + -10k = 0 + -60
-10k = 0 + -60

Combine like terms: 0 + -60 = -60
-10k = -60

Divide each side by '-10'.
k = 6

Simplifying
k = 6

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