-2(k+9)=20

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Solution for -2(k+9)=20 equation:


Simplifying
-2(k + 9) = 20

Reorder the terms:
-2(9 + k) = 20
(9 * -2 + k * -2) = 20
(-18 + -2k) = 20

Solving
-18 + -2k = 20

Solving for variable 'k'.

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

Add '18' to each side of the equation.
-18 + 18 + -2k = 20 + 18

Combine like terms: -18 + 18 = 0
0 + -2k = 20 + 18
-2k = 20 + 18

Combine like terms: 20 + 18 = 38
-2k = 38

Divide each side by '-2'.
k = -19

Simplifying
k = -19

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