Question 80138
so you have the equation y=3+x
all you have to do is substitute the value in the set for x and get a number for y.
So your first number is -1, so 
y=3+(-1)=3-1=2 do the same for the rest
y=3+(-2)=3-2=1
y=3+(-3)=3-3=0
y=3+(-4)=3-4=-1
y=3+(-5)=3-5=-2

so your set of solutions would then be {2,1,0,-1,-2}

good luck
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