-8[7k-8]-7=-55

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Solution for -8[7k-8]-7=-55 equation:


Simplifying
-8[7k + -8] + -7 = -55

Reorder the terms:
-8[-8 + 7k] + -7 = -55
[-8 * -8 + 7k * -8] + -7 = -55
[64 + -56k] + -7 = -55

Reorder the terms:
64 + -7 + -56k = -55

Combine like terms: 64 + -7 = 57
57 + -56k = -55

Solving
57 + -56k = -55

Solving for variable 'k'.

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

Add '-57' to each side of the equation.
57 + -57 + -56k = -55 + -57

Combine like terms: 57 + -57 = 0
0 + -56k = -55 + -57
-56k = -55 + -57

Combine like terms: -55 + -57 = -112
-56k = -112

Divide each side by '-56'.
k = 2

Simplifying
k = 2

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