9+w=-w-9

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Solution for 9+w=-w-9 equation:


Simplifying
9 + w = -1w + -9

Reorder the terms:
9 + w = -9 + -1w

Solving
9 + w = -9 + -1w

Solving for variable 'w'.

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

Add 'w' to each side of the equation.
9 + w + w = -9 + -1w + w

Combine like terms: w + w = 2w
9 + 2w = -9 + -1w + w

Combine like terms: -1w + w = 0
9 + 2w = -9 + 0
9 + 2w = -9

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

Combine like terms: 9 + -9 = 0
0 + 2w = -9 + -9
2w = -9 + -9

Combine like terms: -9 + -9 = -18
2w = -18

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

Simplifying
w = -9

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