-3(3k+7)-3(5k-9)=

Solution for -3(3k+7)-3(5k-9)= equation:

Simplifying
-3(3k + 7) + -3(5k + -9) = 0

Reorder the terms:
-3(7 + 3k) + -3(5k + -9) = 0
(7 * -3 + 3k * -3) + -3(5k + -9) = 0
(-21 + -9k) + -3(5k + -9) = 0

Reorder the terms:
-21 + -9k + -3(-9 + 5k) = 0
-21 + -9k + (-9 * -3 + 5k * -3) = 0
-21 + -9k + (27 + -15k) = 0

Reorder the terms:
-21 + 27 + -9k + -15k = 0

Combine like terms: -21 + 27 = 6
6 + -9k + -15k = 0

Combine like terms: -9k + -15k = -24k
6 + -24k = 0

Solving
6 + -24k = 0

Solving for variable 'k'.

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

Add '-6' to each side of the equation.
6 + -6 + -24k = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -24k = 0 + -6
-24k = 0 + -6

Combine like terms: 0 + -6 = -6
-24k = -6

Divide each side by '-24'.
k = 0.25

Simplifying
k = 0.25