3k+7=k-9

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Solution for 3k+7=k-9 equation:


Simplifying
3k + 7 = k + -9

Reorder the terms:
7 + 3k = k + -9

Reorder the terms:
7 + 3k = -9 + k

Solving
7 + 3k = -9 + k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
7 + 3k + -1k = -9 + k + -1k

Combine like terms: 3k + -1k = 2k
7 + 2k = -9 + k + -1k

Combine like terms: k + -1k = 0
7 + 2k = -9 + 0
7 + 2k = -9

Add '-7' to each side of the equation.
7 + -7 + 2k = -9 + -7

Combine like terms: 7 + -7 = 0
0 + 2k = -9 + -7
2k = -9 + -7

Combine like terms: -9 + -7 = -16
2k = -16

Divide each side by '2'.
k = -8

Simplifying
k = -8

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