-4(k-9)-(-5k-9)=9

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Solution for -4(k-9)-(-5k-9)=9 equation:


Simplifying
-4(k + -9) + -1(-5k + -9) = 9

Reorder the terms:
-4(-9 + k) + -1(-5k + -9) = 9
(-9 * -4 + k * -4) + -1(-5k + -9) = 9
(36 + -4k) + -1(-5k + -9) = 9

Reorder the terms:
36 + -4k + -1(-9 + -5k) = 9
36 + -4k + (-9 * -1 + -5k * -1) = 9
36 + -4k + (9 + 5k) = 9

Reorder the terms:
36 + 9 + -4k + 5k = 9

Combine like terms: 36 + 9 = 45
45 + -4k + 5k = 9

Combine like terms: -4k + 5k = 1k
45 + 1k = 9

Solving
45 + 1k = 9

Solving for variable 'k'.

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

Add '-45' to each side of the equation.
45 + -45 + 1k = 9 + -45

Combine like terms: 45 + -45 = 0
0 + 1k = 9 + -45
1k = 9 + -45

Combine like terms: 9 + -45 = -36
1k = -36

Divide each side by '1'.
k = -36

Simplifying
k = -36

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