k+7+7k=12+9k

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Solution for k+7+7k=12+9k equation:


Simplifying
k + 7 + 7k = 12 + 9k

Reorder the terms:
7 + k + 7k = 12 + 9k

Combine like terms: k + 7k = 8k
7 + 8k = 12 + 9k

Solving
7 + 8k = 12 + 9k

Solving for variable 'k'.

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

Add '-9k' to each side of the equation.
7 + 8k + -9k = 12 + 9k + -9k

Combine like terms: 8k + -9k = -1k
7 + -1k = 12 + 9k + -9k

Combine like terms: 9k + -9k = 0
7 + -1k = 12 + 0
7 + -1k = 12

Add '-7' to each side of the equation.
7 + -7 + -1k = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -1k = 12 + -7
-1k = 12 + -7

Combine like terms: 12 + -7 = 5
-1k = 5

Divide each side by '-1'.
k = -5

Simplifying
k = -5

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