Solve for w
w=1.8
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w+4.4=3.1\times 2
Multiply both sides by 2.
w+4.4=6.2
Multiply 3.1 and 2 to get 6.2.
w=6.2-4.4
Subtract 4.4 from both sides.
w=1.8
Subtract 4.4 from 6.2 to get 1.8.
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