Solve for w
w=12
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0.5w=4.5+1.5
Add 1.5 to both sides.
0.5w=6
Add 4.5 and 1.5 to get 6.
w=\frac{6}{0.5}
Divide both sides by 0.5.
w=\frac{60}{5}
Expand \frac{6}{0.5} by multiplying both numerator and the denominator by 10.
w=12
Divide 60 by 5 to get 12.
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