3k-6+3k-6=81

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Solution for 3k-6+3k-6=81 equation:


Simplifying
3k + -6 + 3k + -6 = 81

Reorder the terms:
-6 + -6 + 3k + 3k = 81

Combine like terms: -6 + -6 = -12
-12 + 3k + 3k = 81

Combine like terms: 3k + 3k = 6k
-12 + 6k = 81

Solving
-12 + 6k = 81

Solving for variable 'k'.

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

Add '12' to each side of the equation.
-12 + 12 + 6k = 81 + 12

Combine like terms: -12 + 12 = 0
0 + 6k = 81 + 12
6k = 81 + 12

Combine like terms: 81 + 12 = 93
6k = 93

Divide each side by '6'.
k = 15.5

Simplifying
k = 15.5

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