30=3k-9

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Solution for 30=3k-9 equation:


Simplifying
30 = 3k + -9

Reorder the terms:
30 = -9 + 3k

Solving
30 = -9 + 3k

Solving for variable 'k'.

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

Add '-3k' to each side of the equation.
30 + -3k = -9 + 3k + -3k

Combine like terms: 3k + -3k = 0
30 + -3k = -9 + 0
30 + -3k = -9

Add '-30' to each side of the equation.
30 + -30 + -3k = -9 + -30

Combine like terms: 30 + -30 = 0
0 + -3k = -9 + -30
-3k = -9 + -30

Combine like terms: -9 + -30 = -39
-3k = -39

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

Simplifying
k = 13

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