7(s+3)-(4s-k)+8k=

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Solution for 7(s+3)-(4s-k)+8k= equation:


Simplifying
7(s + 3) + -1(4s + -1k) + 8k = 0

Reorder the terms:
7(3 + s) + -1(4s + -1k) + 8k = 0
(3 * 7 + s * 7) + -1(4s + -1k) + 8k = 0
(21 + 7s) + -1(4s + -1k) + 8k = 0

Reorder the terms:
21 + 7s + -1(-1k + 4s) + 8k = 0
21 + 7s + (-1k * -1 + 4s * -1) + 8k = 0
21 + 7s + (1k + -4s) + 8k = 0

Reorder the terms:
21 + 1k + 8k + 7s + -4s = 0

Combine like terms: 1k + 8k = 9k
21 + 9k + 7s + -4s = 0

Combine like terms: 7s + -4s = 3s
21 + 9k + 3s = 0

Solving
21 + 9k + 3s = 0

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 + 9k + -21 + 3s = 0 + -21

Reorder the terms:
21 + -21 + 9k + 3s = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 9k + 3s = 0 + -21
9k + 3s = 0 + -21

Combine like terms: 0 + -21 = -21
9k + 3s = -21

Add '-3s' to each side of the equation.
9k + 3s + -3s = -21 + -3s

Combine like terms: 3s + -3s = 0
9k + 0 = -21 + -3s
9k = -21 + -3s

Divide each side by '9'.
k = -2.333333333 + -0.3333333333s

Simplifying
k = -2.333333333 + -0.3333333333s

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