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130=w+w+20+w
We simplify the equation to the form, which is simple to understand
130=w+w+20+w
We move all terms containing w to the left and all other terms to the right.
-1w-1w-1w=+20-130
We simplify left and right side of the equation.
-3w=-110
We divide both sides of the equation by -3 to get w.
w=36.666666666667
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