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(x,y) = (7, 1), (11, 2), (15, 3) and so on
X=4y+3Or 4y+3=xNow to get four solutions,express y in terms of x asY=(x-30)÷4Now if x =1 then y =(1-30)÷4=_29÷4=7/4If x=-2 then y =(-2-30)÷4=-32÷4=8If x=3 then y =(3-30)÷4=28÷4=7If x=4 then y=(4-30)÷4=36÷4=9 The four required solutions are (-2,7/4),(-2,8),(3,7),(4,9)
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