7-k-2k=12

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Solution for 7-k-2k=12 equation: 


Simplifying
7 + -1k + -2k = 12

Combine like terms: -1k + -2k = -3k
7 + -3k = 12

Solving
7 + -3k = 12

Solving for variable 'k'.

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

Add '-7' to each side of the equation.
7 + -7 + -3k = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -3k = 12 + -7
-3k = 12 + -7

Combine like terms: 12 + -7 = 5
-3k = 5

Divide each side by '-3'.
k = -1.666666667

Simplifying
k = -1.666666667

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