-10k=10(k-9)

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Solution for -10k=10(k-9) equation:


Simplifying
-10k = 10(k + -9)

Reorder the terms:
-10k = 10(-9 + k)
-10k = (-9 * 10 + k * 10)
-10k = (-90 + 10k)

Solving
-10k = -90 + 10k

Solving for variable 'k'.

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

Add '-10k' to each side of the equation.
-10k + -10k = -90 + 10k + -10k

Combine like terms: -10k + -10k = -20k
-20k = -90 + 10k + -10k

Combine like terms: 10k + -10k = 0
-20k = -90 + 0
-20k = -90

Divide each side by '-20'.
k = 4.5

Simplifying
k = 4.5

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