2(9+d)=

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Solution for 2(9+d)= equation: 


Simplifying
2(9 + d) = 0
(9 * 2 + d * 2) = 0
(18 + 2d) = 0

Solving
18 + 2d = 0

Solving for variable 'd'.

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

Add '-18' to each side of the equation.
18 + -18 + 2d = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 2d = 0 + -18
2d = 0 + -18

Combine like terms: 0 + -18 = -18
2d = -18

Divide each side by '2'.
d = -9

Simplifying
d = -9

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