9=k-9

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Solution for 9=k-9 equation:


Simplifying
9 = k + -9

Reorder the terms:
9 = -9 + k

Solving
9 = -9 + k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
9 + -1k = -9 + k + -1k

Combine like terms: k + -1k = 0
9 + -1k = -9 + 0
9 + -1k = -9

Add '-9' to each side of the equation.
9 + -9 + -1k = -9 + -9

Combine like terms: 9 + -9 = 0
0 + -1k = -9 + -9
-1k = -9 + -9

Combine like terms: -9 + -9 = -18
-1k = -18

Divide each side by '-1'.
k = 18

Simplifying
k = 18

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