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

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


Simplifying
9(k + 9) + -1(4k + -6) = 4k

Reorder the terms:
9(9 + k) + -1(4k + -6) = 4k
(9 * 9 + k * 9) + -1(4k + -6) = 4k
(81 + 9k) + -1(4k + -6) = 4k

Reorder the terms:
81 + 9k + -1(-6 + 4k) = 4k
81 + 9k + (-6 * -1 + 4k * -1) = 4k
81 + 9k + (6 + -4k) = 4k

Reorder the terms:
81 + 6 + 9k + -4k = 4k

Combine like terms: 81 + 6 = 87
87 + 9k + -4k = 4k

Combine like terms: 9k + -4k = 5k
87 + 5k = 4k

Solving
87 + 5k = 4k

Solving for variable 'k'.

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

Add '-4k' to each side of the equation.
87 + 5k + -4k = 4k + -4k

Combine like terms: 5k + -4k = 1k
87 + 1k = 4k + -4k

Combine like terms: 4k + -4k = 0
87 + 1k = 0

Add '-87' to each side of the equation.
87 + -87 + 1k = 0 + -87

Combine like terms: 87 + -87 = 0
0 + 1k = 0 + -87
1k = 0 + -87

Combine like terms: 0 + -87 = -87
1k = -87

Divide each side by '1'.
k = -87

Simplifying
k = -87

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