-11k-9(-k-7)=11+7k-13k

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Solution for -11k-9(-k-7)=11+7k-13k equation:


Simplifying
-11k + -9(-1k + -7) = 11 + 7k + -13k

Reorder the terms:
-11k + -9(-7 + -1k) = 11 + 7k + -13k
-11k + (-7 * -9 + -1k * -9) = 11 + 7k + -13k
-11k + (63 + 9k) = 11 + 7k + -13k

Reorder the terms:
63 + -11k + 9k = 11 + 7k + -13k

Combine like terms: -11k + 9k = -2k
63 + -2k = 11 + 7k + -13k

Combine like terms: 7k + -13k = -6k
63 + -2k = 11 + -6k

Solving
63 + -2k = 11 + -6k

Solving for variable 'k'.

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

Add '6k' to each side of the equation.
63 + -2k + 6k = 11 + -6k + 6k

Combine like terms: -2k + 6k = 4k
63 + 4k = 11 + -6k + 6k

Combine like terms: -6k + 6k = 0
63 + 4k = 11 + 0
63 + 4k = 11

Add '-63' to each side of the equation.
63 + -63 + 4k = 11 + -63

Combine like terms: 63 + -63 = 0
0 + 4k = 11 + -63
4k = 11 + -63

Combine like terms: 11 + -63 = -52
4k = -52

Divide each side by '4'.
k = -13

Simplifying
k = -13

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