3=9-2w

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Solution for 3=9-2w equation:


Simplifying
3 = 9 + -2w

Solving
3 = 9 + -2w

Solving for variable 'w'.

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

Add '2w' to each side of the equation.
3 + 2w = 9 + -2w + 2w

Combine like terms: -2w + 2w = 0
3 + 2w = 9 + 0
3 + 2w = 9

Add '-3' to each side of the equation.
3 + -3 + 2w = 9 + -3

Combine like terms: 3 + -3 = 0
0 + 2w = 9 + -3
2w = 9 + -3

Combine like terms: 9 + -3 = 6
2w = 6

Divide each side by '2'.
w = 3

Simplifying
w = 3

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