31=6+9(k+7)

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Solution for 31=6+9(k+7) equation: 


Simplifying
31 = 6 + 9(k + 7)

Reorder the terms:
31 = 6 + 9(7 + k)
31 = 6 + (7 * 9 + k * 9)
31 = 6 + (63 + 9k)

Combine like terms: 6 + 63 = 69
31 = 69 + 9k

Solving
31 = 69 + 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.
31 + -9k = 69 + 9k + -9k

Combine like terms: 9k + -9k = 0
31 + -9k = 69 + 0
31 + -9k = 69

Add '-31' to each side of the equation.
31 + -31 + -9k = 69 + -31

Combine like terms: 31 + -31 = 0
0 + -9k = 69 + -31
-9k = 69 + -31

Combine like terms: 69 + -31 = 38
-9k = 38

Divide each side by '-9'.
k = -4.222222222

Simplifying
k = -4.222222222

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