-8(k-7)-(-9k-8)=-8

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Solution for -8(k-7)-(-9k-8)=-8 equation: 


Simplifying
-8(k + -7) + -1(-9k + -8) = -8

Reorder the terms:
-8(-7 + k) + -1(-9k + -8) = -8
(-7 * -8 + k * -8) + -1(-9k + -8) = -8
(56 + -8k) + -1(-9k + -8) = -8

Reorder the terms:
56 + -8k + -1(-8 + -9k) = -8
56 + -8k + (-8 * -1 + -9k * -1) = -8
56 + -8k + (8 + 9k) = -8

Reorder the terms:
56 + 8 + -8k + 9k = -8

Combine like terms: 56 + 8 = 64
64 + -8k + 9k = -8

Combine like terms: -8k + 9k = 1k
64 + 1k = -8

Solving
64 + 1k = -8

Solving for variable 'k'.

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

Add '-64' to each side of the equation.
64 + -64 + 1k = -8 + -64

Combine like terms: 64 + -64 = 0
0 + 1k = -8 + -64
1k = -8 + -64

Combine like terms: -8 + -64 = -72
1k = -72

Divide each side by '1'.
k = -72

Simplifying
k = -72

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