12=3+w

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Solution for 12=3+w equation:


12=3+w

We simplify the equation to the form, which is simple to understand 
12=3+w

We move all terms containing w to the left and all other terms to the right. 
-1w=+3-12

We simplify left and right side of the equation. 
-1w=-9

We divide both sides of the equation by -01 to get w. 
w=9

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