2(k-5)+8k=-90

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Solution for 2(k-5)+8k=-90 equation: 


Simplifying
2(k + -5) + 8k = -90

Reorder the terms:
2(-5 + k) + 8k = -90
(-5 * 2 + k * 2) + 8k = -90
(-10 + 2k) + 8k = -90

Combine like terms: 2k + 8k = 10k
-10 + 10k = -90

Solving
-10 + 10k = -90

Solving for variable 'k'.

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

Add '10' to each side of the equation.
-10 + 10 + 10k = -90 + 10

Combine like terms: -10 + 10 = 0
0 + 10k = -90 + 10
10k = -90 + 10

Combine like terms: -90 + 10 = -80
10k = -80

Divide each side by '10'.
k = -8

Simplifying
k = -8

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