3k+13=9k-8

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Solution for 3k+13=9k-8 equation:


Simplifying
3k + 13 = 9k + -8

Reorder the terms:
13 + 3k = 9k + -8

Reorder the terms:
13 + 3k = -8 + 9k

Solving
13 + 3k = -8 + 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.
13 + 3k + -9k = -8 + 9k + -9k

Combine like terms: 3k + -9k = -6k
13 + -6k = -8 + 9k + -9k

Combine like terms: 9k + -9k = 0
13 + -6k = -8 + 0
13 + -6k = -8

Add '-13' to each side of the equation.
13 + -13 + -6k = -8 + -13

Combine like terms: 13 + -13 = 0
0 + -6k = -8 + -13
-6k = -8 + -13

Combine like terms: -8 + -13 = -21
-6k = -21

Divide each side by '-6'.
k = 3.5

Simplifying
k = 3.5

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