3(k-12)=9

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Solution for 3(k-12)=9 equation: 


Simplifying
3(k + -12) = 9

Reorder the terms:
3(-12 + k) = 9
(-12 * 3 + k * 3) = 9
(-36 + 3k) = 9

Solving
-36 + 3k = 9

Solving for variable 'k'.

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

Add '36' to each side of the equation.
-36 + 36 + 3k = 9 + 36

Combine like terms: -36 + 36 = 0
0 + 3k = 9 + 36
3k = 9 + 36

Combine like terms: 9 + 36 = 45
3k = 45

Divide each side by '3'.
k = 15

Simplifying
k = 15

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