-5+7(k+4)+k=15

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Solution for -5+7(k+4)+k=15 equation:


Simplifying
-5 + 7(k + 4) + k = 15

Reorder the terms:
-5 + 7(4 + k) + k = 15
-5 + (4 * 7 + k * 7) + k = 15
-5 + (28 + 7k) + k = 15

Combine like terms: -5 + 28 = 23
23 + 7k + k = 15

Combine like terms: 7k + k = 8k
23 + 8k = 15

Solving
23 + 8k = 15

Solving for variable 'k'.

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

Add '-23' to each side of the equation.
23 + -23 + 8k = 15 + -23

Combine like terms: 23 + -23 = 0
0 + 8k = 15 + -23
8k = 15 + -23

Combine like terms: 15 + -23 = -8
8k = -8

Divide each side by '8'.
k = -1

Simplifying
k = -1

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