15=-5+9(k-8)

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Solution for 15=-5+9(k-8) equation: 


Simplifying
15 = -5 + 9(k + -8)

Reorder the terms:
15 = -5 + 9(-8 + k)
15 = -5 + (-8 * 9 + k * 9)
15 = -5 + (-72 + 9k)

Combine like terms: -5 + -72 = -77
15 = -77 + 9k

Solving
15 = -77 + 9k

Solving for variable 'k'.

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

Add '-9k' to each side of the equation.
15 + -9k = -77 + 9k + -9k

Combine like terms: 9k + -9k = 0
15 + -9k = -77 + 0
15 + -9k = -77

Add '-15' to each side of the equation.
15 + -15 + -9k = -77 + -15

Combine like terms: 15 + -15 = 0
0 + -9k = -77 + -15
-9k = -77 + -15

Combine like terms: -77 + -15 = -92
-9k = -92

Divide each side by '-9'.
k = 10.22222222

Simplifying
k = 10.22222222

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