3k+7=-k-9

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


Simplifying
3k + 7 = -1k + -9

Reorder the terms:
7 + 3k = -1k + -9

Reorder the terms:
7 + 3k = -9 + -1k

Solving
7 + 3k = -9 + -1k

Solving for variable 'k'.

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

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

Combine like terms: 3k + k = 4k
7 + 4k = -9 + -1k + k

Combine like terms: -1k + k = 0
7 + 4k = -9 + 0
7 + 4k = -9

Add '-7' to each side of the equation.
7 + -7 + 4k = -9 + -7

Combine like terms: 7 + -7 = 0
0 + 4k = -9 + -7
4k = -9 + -7

Combine like terms: -9 + -7 = -16
4k = -16

Divide each side by '4'.
k = -4

Simplifying
k = -4

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