3(-k+7)=-18

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Solution for 3(-k+7)=-18 equation: 


Simplifying
3(-1k + 7) = -18

Reorder the terms:
3(7 + -1k) = -18
(7 * 3 + -1k * 3) = -18
(21 + -3k) = -18

Solving
21 + -3k = -18

Solving for variable 'k'.

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

Add '-21' to each side of the equation.
21 + -21 + -3k = -18 + -21

Combine like terms: 21 + -21 = 0
0 + -3k = -18 + -21
-3k = -18 + -21

Combine like terms: -18 + -21 = -39
-3k = -39

Divide each side by '-3'.
k = 13

Simplifying
k = 13

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