Question 259701
Don't be freaked by the operation they give you. Looking at it, we can say that it means 
"twice the second + the first + 3 times the first minus the second"
We can actually simplify this as
{{{x ¤ y = (y + 4x)}}}
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We start with
2 ¤ 1 = 4(2) + 1 = 9
and then
3 ¤ w = 4(3) + w
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set them equal to get
{{{9 = 12 + w}}}
{{{w = -3}}}