9=-11+2k-12k

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Solution for 9=-11+2k-12k equation:


Simplifying
9 = -11 + 2k + -12k

Combine like terms: 2k + -12k = -10k
9 = -11 + -10k

Solving
9 = -11 + -10k

Solving for variable 'k'.

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

Add '10k' to each side of the equation.
9 + 10k = -11 + -10k + 10k

Combine like terms: -10k + 10k = 0
9 + 10k = -11 + 0
9 + 10k = -11

Add '-9' to each side of the equation.
9 + -9 + 10k = -11 + -9

Combine like terms: 9 + -9 = 0
0 + 10k = -11 + -9
10k = -11 + -9

Combine like terms: -11 + -9 = -20
10k = -20

Divide each side by '10'.
k = -2

Simplifying
k = -2

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