9=-2(x+9)

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Solution for 9=-2(x+9) equation: 


Simplifying
9 = -2(x + 9)

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

Solving
9 = -18 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
9 + 2x = -18 + -2x + 2x

Combine like terms: -2x + 2x = 0
9 + 2x = -18 + 0
9 + 2x = -18

Add '-9' to each side of the equation.
9 + -9 + 2x = -18 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = -18 + -9
2x = -18 + -9

Combine like terms: -18 + -9 = -27
2x = -27

Divide each side by '2'.
x = -13.5

Simplifying
x = -13.5

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