20=k+9

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Solution for 20=k+9 equation:


Simplifying
20 = k + 9

Reorder the terms:
20 = 9 + k

Solving
20 = 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.
20 + -1k = 9 + k + -1k

Combine like terms: k + -1k = 0
20 + -1k = 9 + 0
20 + -1k = 9

Add '-20' to each side of the equation.
20 + -20 + -1k = 9 + -20

Combine like terms: 20 + -20 = 0
0 + -1k = 9 + -20
-1k = 9 + -20

Combine like terms: 9 + -20 = -11
-1k = -11

Divide each side by '-1'.
k = 11

Simplifying
k = 11

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