5(2k+3)-(4k-6)=-9

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Solution for 5(2k+3)-(4k-6)=-9 equation:


Simplifying
5(2k + 3) + -1(4k + -6) = -9

Reorder the terms:
5(3 + 2k) + -1(4k + -6) = -9
(3 * 5 + 2k * 5) + -1(4k + -6) = -9
(15 + 10k) + -1(4k + -6) = -9

Reorder the terms:
15 + 10k + -1(-6 + 4k) = -9
15 + 10k + (-6 * -1 + 4k * -1) = -9
15 + 10k + (6 + -4k) = -9

Reorder the terms:
15 + 6 + 10k + -4k = -9

Combine like terms: 15 + 6 = 21
21 + 10k + -4k = -9

Combine like terms: 10k + -4k = 6k
21 + 6k = -9

Solving
21 + 6k = -9

Solving for variable 'k'.

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

Add '-21' to each side of the equation.
21 + -21 + 6k = -9 + -21

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

Combine like terms: -9 + -21 = -30
6k = -30

Divide each side by '6'.
k = -5

Simplifying
k = -5

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