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

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


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

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

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

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

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

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

Combine like terms: -4 + 9 = 5
5 + k + 3k = 0

Combine like terms: k + 3k = 4k
5 + 4k = 0

Solving
5 + 4k = 0

Solving for variable 'k'.

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

Add '-5' to each side of the equation.
5 + -5 + 4k = 0 + -5

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

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

Divide each side by '4'.
k = -1.25

Simplifying
k = -1.25

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