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Simplifying
10000 + -1k2 = 9879
Solving
10000 + -1k2 = 9879
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '-10000' to each side of the equation.
10000 + -10000 + -1k2 = 9879 + -10000
Combine like terms: 10000 + -10000 = 0
0 + -1k2 = 9879 + -10000
-1k2 = 9879 + -10000
Combine like terms: 9879 + -10000 = -121
-1k2 = -121
Divide each side by '-1'.
k2 = 121
Simplifying
k2 = 121
Take the square root of each side:
k = {-11, 11}
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