7(9+3k)=0

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Solution for 7(9+3k)=0 equation: 


Simplifying
7(9 + 3k) = 0
(9 * 7 + 3k * 7) = 0
(63 + 21k) = 0

Solving
63 + 21k = 0

Solving for variable 'k'.

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

Add '-63' to each side of the equation.
63 + -63 + 21k = 0 + -63

Combine like terms: 63 + -63 = 0
0 + 21k = 0 + -63
21k = 0 + -63

Combine like terms: 0 + -63 = -63
21k = -63

Divide each side by '21'.
k = -3

Simplifying
k = -3

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