K+2k+(3+k)=31

Solution for K+2k+(3+k)=31 equation:

Simplifying
K + 2k + (3 + k) = 31

Remove parenthesis around (3 + k)
K + 2k + 3 + k = 31

Reorder the terms:
3 + K + 2k + k = 31

Combine like terms: 2k + k = 3k
3 + K + 3k = 31

Solving
3 + K + 3k = 31

Solving for variable 'K'.

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

Add '-3' to each side of the equation.
3 + K + -3 + 3k = 31 + -3

Reorder the terms:
3 + -3 + K + 3k = 31 + -3

Combine like terms: 3 + -3 = 0
0 + K + 3k = 31 + -3
K + 3k = 31 + -3

Combine like terms: 31 + -3 = 28
K + 3k = 28

Add '-3k' to each side of the equation.
K + 3k + -3k = 28 + -3k

Combine like terms: 3k + -3k = 0
K + 0 = 28 + -3k
K = 28 + -3k

Simplifying
K = 28 + -3k