(1+k)3=1.5

Solution for (1+k)3=1.5 equation:

Simplifying
(1 + k) * 3 = 1.5

Reorder the terms for easier multiplication:
3(1 + k) = 1.5
(1 * 3 + k * 3) = 1.5
(3 + 3k) = 1.5

Solving
3 + 3k = 1.5

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 + -3 + 3k = 1.5 + -3

Combine like terms: 3 + -3 = 0
0 + 3k = 1.5 + -3
3k = 1.5 + -3

Combine like terms: 1.5 + -3 = -1.5
3k = -1.5

Divide each side by '3'.
k = -0.5

Simplifying
k = -0.5