7[9+k]=

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Solution for 7[9+k]= equation: 


Simplifying
7[9 + k] = 0
[9 * 7 + k * 7] = 0
[63 + 7k] = 0

Solving
63 + 7k = 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 + 7k = 0 + -63

Combine like terms: 63 + -63 = 0
0 + 7k = 0 + -63
7k = 0 + -63

Combine like terms: 0 + -63 = -63
7k = -63

Divide each side by '7'.
k = -9

Simplifying
k = -9

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