5k+7+3k=31

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Solution for 5k+7+3k=31 equation: 


Simplifying
5k + 7 + 3k = 31

Reorder the terms:
7 + 5k + 3k = 31

Combine like terms: 5k + 3k = 8k
7 + 8k = 31

Solving
7 + 8k = 31

Solving for variable 'k'.

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

Add '-7' to each side of the equation.
7 + -7 + 8k = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 8k = 31 + -7
8k = 31 + -7

Combine like terms: 31 + -7 = 24
8k = 24

Divide each side by '8'.
k = 3

Simplifying
k = 3

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