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w/7+3=15
We simplify the equation to the form, which is simple to understand
w/7+3=15
We move all terms containing w to the left and all other terms to the right.
+ 0.14285714285714w=+15-3
We simplify left and right side of the equation.
+ 0.14285714285714w=+12
We divide both sides of the equation by 0.14285714285714 to get w.
w=84
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