45=12w-3w

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Solution for 45=12w-3w equation: 



45=12w-3w

We move all terms to the left:

45-(12w-3w)=0

We add all the numbers together, and all the variables

-(+9w)+45=0

We get rid of parentheses

-9w+45=0

We move all terms containing w to the left, all other terms to the right

-9w=-45

w=-45/-9

w=+5

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