3+k=-2k

Solution for 3+k=-2k equation:

Simplifying
3 + k = -2k

Solving
3 + k = -2k

Solving for variable 'k'.

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

Add '2k' to each side of the equation.
3 + k + 2k = -2k + 2k

Combine like terms: k + 2k = 3k
3 + 3k = -2k + 2k

Combine like terms: -2k + 2k = 0
3 + 3k = 0

Add '-3' to each side of the equation.
3 + -3 + 3k = 0 + -3

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

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

Divide each side by '3'.
k = -1

Simplifying
k = -1