-20=3+2(k+6)

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Solution for -20=3+2(k+6) equation: 


Simplifying
-20 = 3 + 2(k + 6)

Reorder the terms:
-20 = 3 + 2(6 + k)
-20 = 3 + (6 * 2 + k * 2)
-20 = 3 + (12 + 2k)

Combine like terms: 3 + 12 = 15
-20 = 15 + 2k

Solving
-20 = 15 + 2k

Solving for variable 'k'.

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

Add '-2k' to each side of the equation.
-20 + -2k = 15 + 2k + -2k

Combine like terms: 2k + -2k = 0
-20 + -2k = 15 + 0
-20 + -2k = 15

Add '20' to each side of the equation.
-20 + 20 + -2k = 15 + 20

Combine like terms: -20 + 20 = 0
0 + -2k = 15 + 20
-2k = 15 + 20

Combine like terms: 15 + 20 = 35
-2k = 35

Divide each side by '-2'.
k = -17.5

Simplifying
k = -17.5

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