20-5k=-(7k-8)

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Solution for 20-5k=-(7k-8) equation:


Simplifying
20 + -5k = -1(7k + -8)

Reorder the terms:
20 + -5k = -1(-8 + 7k)
20 + -5k = (-8 * -1 + 7k * -1)
20 + -5k = (8 + -7k)

Solving
20 + -5k = 8 + -7k

Solving for variable 'k'.

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

Add '7k' to each side of the equation.
20 + -5k + 7k = 8 + -7k + 7k

Combine like terms: -5k + 7k = 2k
20 + 2k = 8 + -7k + 7k

Combine like terms: -7k + 7k = 0
20 + 2k = 8 + 0
20 + 2k = 8

Add '-20' to each side of the equation.
20 + -20 + 2k = 8 + -20

Combine like terms: 20 + -20 = 0
0 + 2k = 8 + -20
2k = 8 + -20

Combine like terms: 8 + -20 = -12
2k = -12

Divide each side by '2'.
k = -6

Simplifying
k = -6

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