6(9+k)+k+9=84

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Solution for 6(9+k)+k+9=84 equation:


Simplifying
6(9 + k) + k + 9 = 84
(9 * 6 + k * 6) + k + 9 = 84
(54 + 6k) + k + 9 = 84

Reorder the terms:
54 + 9 + 6k + k = 84

Combine like terms: 54 + 9 = 63
63 + 6k + k = 84

Combine like terms: 6k + k = 7k
63 + 7k = 84

Solving
63 + 7k = 84

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 = 84 + -63

Combine like terms: 63 + -63 = 0
0 + 7k = 84 + -63
7k = 84 + -63

Combine like terms: 84 + -63 = 21
7k = 21

Divide each side by '7'.
k = 3

Simplifying
k = 3

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