k+39=7k-9

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Solution for k+39=7k-9 equation:


Simplifying
k + 39 = 7k + -9

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

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

Solving
39 + k = -9 + 7k

Solving for variable 'k'.

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

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

Combine like terms: k + -7k = -6k
39 + -6k = -9 + 7k + -7k

Combine like terms: 7k + -7k = 0
39 + -6k = -9 + 0
39 + -6k = -9

Add '-39' to each side of the equation.
39 + -39 + -6k = -9 + -39

Combine like terms: 39 + -39 = 0
0 + -6k = -9 + -39
-6k = -9 + -39

Combine like terms: -9 + -39 = -48
-6k = -48

Divide each side by '-6'.
k = 8

Simplifying
k = 8

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