-123=-3(6-5k)

Solution for -123=-3(6-5k) equation:

Simplifying
-123 = -3(6 + -5k)
-123 = (6 * -3 + -5k * -3)
-123 = (-18 + 15k)

Solving
-123 = -18 + 15k

Solving for variable 'k'.

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

Add '-15k' to each side of the equation.
-123 + -15k = -18 + 15k + -15k

Combine like terms: 15k + -15k = 0
-123 + -15k = -18 + 0
-123 + -15k = -18

Add '123' to each side of the equation.
-123 + 123 + -15k = -18 + 123

Combine like terms: -123 + 123 = 0
0 + -15k = -18 + 123
-15k = -18 + 123

Combine like terms: -18 + 123 = 105
-15k = 105

Divide each side by '-15'.
k = -7

Simplifying
k = -7