(3+4k)+(6-9k)=

Solution for (3+4k)+(6-9k)= equation:

Simplifying
(3 + 4k) + (6 + -9k) = 0

Remove parenthesis around (3 + 4k)
3 + 4k + (6 + -9k) = 0

Remove parenthesis around (6 + -9k)
3 + 4k + 6 + -9k = 0

Reorder the terms:
3 + 6 + 4k + -9k = 0

Combine like terms: 3 + 6 = 9
9 + 4k + -9k = 0

Combine like terms: 4k + -9k = -5k
9 + -5k = 0

Solving
9 + -5k = 0

Solving for variable 'k'.

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

Add '-9' to each side of the equation.
9 + -9 + -5k = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -5k = 0 + -9
-5k = 0 + -9

Combine like terms: 0 + -9 = -9
-5k = -9

Divide each side by '-5'.
k = 1.8

Simplifying
k = 1.8