-10=10(k-9)

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


Simplifying
-10 = 10(k + -9)

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

Solving
-10 = -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.
-10 + -10k = -90 + 10k + -10k

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

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

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

Combine like terms: -90 + 10 = -80
-10k = -80

Divide each side by '-10'.
k = 8

Simplifying
k = 8

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