9(11-k)=13(3k-9)

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Solution for 9(11-k)=13(3k-9) equation:


Simplifying
9(11 + -1k) = 13(3k + -9)
(11 * 9 + -1k * 9) = 13(3k + -9)
(99 + -9k) = 13(3k + -9)

Reorder the terms:
99 + -9k = 13(-9 + 3k)
99 + -9k = (-9 * 13 + 3k * 13)
99 + -9k = (-117 + 39k)

Solving
99 + -9k = -117 + 39k

Solving for variable 'k'.

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

Add '-39k' to each side of the equation.
99 + -9k + -39k = -117 + 39k + -39k

Combine like terms: -9k + -39k = -48k
99 + -48k = -117 + 39k + -39k

Combine like terms: 39k + -39k = 0
99 + -48k = -117 + 0
99 + -48k = -117

Add '-99' to each side of the equation.
99 + -99 + -48k = -117 + -99

Combine like terms: 99 + -99 = 0
0 + -48k = -117 + -99
-48k = -117 + -99

Combine like terms: -117 + -99 = -216
-48k = -216

Divide each side by '-48'.
k = 4.5

Simplifying
k = 4.5

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