w+3w=12

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Solution for w+3w=12 equation: 



w+3w=12

We move all terms to the left:

w+3w-(12)=0

We add all the numbers together, and all the variables

4w-12=0

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

4w=12

w=12/4

w=3

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