11k+9=5k+21

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Solution for 11k+9=5k+21 equation:


Simplifying
11k + 9 = 5k + 21

Reorder the terms:
9 + 11k = 5k + 21

Reorder the terms:
9 + 11k = 21 + 5k

Solving
9 + 11k = 21 + 5k

Solving for variable 'k'.

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

Add '-5k' to each side of the equation.
9 + 11k + -5k = 21 + 5k + -5k

Combine like terms: 11k + -5k = 6k
9 + 6k = 21 + 5k + -5k

Combine like terms: 5k + -5k = 0
9 + 6k = 21 + 0
9 + 6k = 21

Add '-9' to each side of the equation.
9 + -9 + 6k = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 6k = 21 + -9
6k = 21 + -9

Combine like terms: 21 + -9 = 12
6k = 12

Divide each side by '6'.
k = 2

Simplifying
k = 2

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