9k+21k+10=0

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Solution for 9k+21k+10=0 equation:


Simplifying
9k + 21k + 10 = 0

Reorder the terms:
10 + 9k + 21k = 0

Combine like terms: 9k + 21k = 30k
10 + 30k = 0

Solving
10 + 30k = 0

Solving for variable 'k'.

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

Add '-10' to each side of the equation.
10 + -10 + 30k = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 30k = 0 + -10
30k = 0 + -10

Combine like terms: 0 + -10 = -10
30k = -10

Divide each side by '30'.
k = -0.3333333333

Simplifying
k = -0.3333333333

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