3=-3(k+3)

Solution for 3=-3(k+3) equation:

Simplifying
3 = -3(k + 3)

Reorder the terms:
3 = -3(3 + k)
3 = (3 * -3 + k * -3)
3 = (-9 + -3k)

Solving
3 = -9 + -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.
3 + 3k = -9 + -3k + 3k

Combine like terms: -3k + 3k = 0
3 + 3k = -9 + 0
3 + 3k = -9

Add '-3' to each side of the equation.
3 + -3 + 3k = -9 + -3

Combine like terms: 3 + -3 = 0
0 + 3k = -9 + -3
3k = -9 + -3

Combine like terms: -9 + -3 = -12
3k = -12

Divide each side by '3'.
k = -4

Simplifying
k = -4