-12=15-9k

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Solution for -12=15-9k equation:


Simplifying
-12 = 15 + -9k

Solving
-12 = 15 + -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.
-12 + 9k = 15 + -9k + 9k

Combine like terms: -9k + 9k = 0
-12 + 9k = 15 + 0
-12 + 9k = 15

Add '12' to each side of the equation.
-12 + 12 + 9k = 15 + 12

Combine like terms: -12 + 12 = 0
0 + 9k = 15 + 12
9k = 15 + 12

Combine like terms: 15 + 12 = 27
9k = 27

Divide each side by '9'.
k = 3

Simplifying
k = 3

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