10k+(7-k)3=

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Solution for 10k+(7-k)3= equation:


Simplifying
10k + (7 + -1k) * 3 = 0

Reorder the terms for easier multiplication:
10k + 3(7 + -1k) = 0
10k + (7 * 3 + -1k * 3) = 0
10k + (21 + -3k) = 0

Reorder the terms:
21 + 10k + -3k = 0

Combine like terms: 10k + -3k = 7k
21 + 7k = 0

Solving
21 + 7k = 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 + -21 + 7k = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 7k = 0 + -21
7k = 0 + -21

Combine like terms: 0 + -21 = -21
7k = -21

Divide each side by '7'.
k = -3

Simplifying
k = -3

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