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w^2-w(w-3)=12(1+4)
We move all terms to the left:
w^2-w(w-3)-(12(1+4))=0
We add all the numbers together, and all the variables
w^2-w(w-3)-(125)=0
We add all the numbers together, and all the variables
w^2-w(w-3)-125=0
We multiply parentheses
w^2-w^2+3w-125=0
We add all the numbers together, and all the variables
3w-125=0
We move all terms containing w to the left, all other terms to the right
3w=125
w=125/3
w=41+2/3
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