5-8=k(-1+2)

Solution for 5-8=k(-1+2) equation:

Simplifying
5 + -8 = k(-1 + 2)

Combine like terms: 5 + -8 = -3
-3 = k(-1 + 2)

Combine like terms: -1 + 2 = 1
-3 = k(1)

Reorder the terms for easier multiplication:
-3 = 1k

Solving
-3 = 1k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
-3 + -1k = 1k + -1k

Combine like terms: 1k + -1k = 0
-3 + -1k = 0

Add '3' to each side of the equation.
-3 + 3 + -1k = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -1k = 0 + 3
-1k = 0 + 3

Combine like terms: 0 + 3 = 3
-1k = 3

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

Simplifying
k = -3