9(k+9)-(7+4k)=4k

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Solution for 9(k+9)-(7+4k)=4k equation:


Simplifying
9(k + 9) + -1(7 + 4k) = 4k

Reorder the terms:
9(9 + k) + -1(7 + 4k) = 4k
(9 * 9 + k * 9) + -1(7 + 4k) = 4k
(81 + 9k) + -1(7 + 4k) = 4k
81 + 9k + (7 * -1 + 4k * -1) = 4k
81 + 9k + (-7 + -4k) = 4k

Reorder the terms:
81 + -7 + 9k + -4k = 4k

Combine like terms: 81 + -7 = 74
74 + 9k + -4k = 4k

Combine like terms: 9k + -4k = 5k
74 + 5k = 4k

Solving
74 + 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.
74 + 5k + -4k = 4k + -4k

Combine like terms: 5k + -4k = 1k
74 + 1k = 4k + -4k

Combine like terms: 4k + -4k = 0
74 + 1k = 0

Add '-74' to each side of the equation.
74 + -74 + 1k = 0 + -74

Combine like terms: 74 + -74 = 0
0 + 1k = 0 + -74
1k = 0 + -74

Combine like terms: 0 + -74 = -74
1k = -74

Divide each side by '1'.
k = -74

Simplifying
k = -74

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