15=1+3k-1

Solution for 15=1+3k-1 equation:

Simplifying
15 = 1 + 3k + -1

Reorder the terms:
15 = 1 + -1 + 3k

Combine like terms: 1 + -1 = 0
15 = 0 + 3k
15 = 3k

Solving
15 = 3k

Solving for variable 'k'.

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

Add '-3k' to each side of the equation.
15 + -3k = 3k + -3k

Combine like terms: 3k + -3k = 0
15 + -3k = 0

Add '-15' to each side of the equation.
15 + -15 + -3k = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -3k = 0 + -15
-3k = 0 + -15

Combine like terms: 0 + -15 = -15
-3k = -15

Divide each side by '-3'.
k = 5

Simplifying
k = 5