12-2w=9

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Solution for 12-2w=9 equation: 


Simplifying
12 + -2w = 9

Solving
12 + -2w = 9

Solving for variable 'w'.

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

Add '-12' to each side of the equation.
12 + -12 + -2w = 9 + -12

Combine like terms: 12 + -12 = 0
0 + -2w = 9 + -12
-2w = 9 + -12

Combine like terms: 9 + -12 = -3
-2w = -3

Divide each side by '-2'.
w = 1.5

Simplifying
w = 1.5

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