3(k-4)-(2k+2)=9

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Solution for 3(k-4)-(2k+2)=9 equation:


Simplifying
3(k + -4) + -1(2k + 2) = 9

Reorder the terms:
3(-4 + k) + -1(2k + 2) = 9
(-4 * 3 + k * 3) + -1(2k + 2) = 9
(-12 + 3k) + -1(2k + 2) = 9

Reorder the terms:
-12 + 3k + -1(2 + 2k) = 9
-12 + 3k + (2 * -1 + 2k * -1) = 9
-12 + 3k + (-2 + -2k) = 9

Reorder the terms:
-12 + -2 + 3k + -2k = 9

Combine like terms: -12 + -2 = -14
-14 + 3k + -2k = 9

Combine like terms: 3k + -2k = 1k
-14 + 1k = 9

Solving
-14 + 1k = 9

Solving for variable 'k'.

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

Add '14' to each side of the equation.
-14 + 14 + 1k = 9 + 14

Combine like terms: -14 + 14 = 0
0 + 1k = 9 + 14
1k = 9 + 14

Combine like terms: 9 + 14 = 23
1k = 23

Divide each side by '1'.
k = 23

Simplifying
k = 23

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