10k-9=12k+11

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Solution for 10k-9=12k+11 equation:


Simplifying
10k + -9 = 12k + 11

Reorder the terms:
-9 + 10k = 12k + 11

Reorder the terms:
-9 + 10k = 11 + 12k

Solving
-9 + 10k = 11 + 12k

Solving for variable 'k'.

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

Add '-12k' to each side of the equation.
-9 + 10k + -12k = 11 + 12k + -12k

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

Combine like terms: 12k + -12k = 0
-9 + -2k = 11 + 0
-9 + -2k = 11

Add '9' to each side of the equation.
-9 + 9 + -2k = 11 + 9

Combine like terms: -9 + 9 = 0
0 + -2k = 11 + 9
-2k = 11 + 9

Combine like terms: 11 + 9 = 20
-2k = 20

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

Simplifying
k = -10

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