-5(k-7)-(9-7k)=k

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Solution for -5(k-7)-(9-7k)=k equation:


Simplifying
-5(k + -7) + -1(9 + -7k) = k

Reorder the terms:
-5(-7 + k) + -1(9 + -7k) = k
(-7 * -5 + k * -5) + -1(9 + -7k) = k
(35 + -5k) + -1(9 + -7k) = k
35 + -5k + (9 * -1 + -7k * -1) = k
35 + -5k + (-9 + 7k) = k

Reorder the terms:
35 + -9 + -5k + 7k = k

Combine like terms: 35 + -9 = 26
26 + -5k + 7k = k

Combine like terms: -5k + 7k = 2k
26 + 2k = k

Solving
26 + 2k = k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
26 + 2k + -1k = k + -1k

Combine like terms: 2k + -1k = 1k
26 + 1k = k + -1k

Combine like terms: k + -1k = 0
26 + 1k = 0

Add '-26' to each side of the equation.
26 + -26 + 1k = 0 + -26

Combine like terms: 26 + -26 = 0
0 + 1k = 0 + -26
1k = 0 + -26

Combine like terms: 0 + -26 = -26
1k = -26

Divide each side by '1'.
k = -26

Simplifying
k = -26

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