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Question

Solve the following systems of equations.
x2+y=5,y2x=7

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Solution

Given equations are,

x2+y=5x+y=5x=5y......(i)

y2x=7.........(ii)

y2(5y)=7

y2+y57=0

y2+y12=0

(y+4)(y3)=0

y=4 or y=3

x=5(4)=9 or x=53=2

The required solutions are,
(9,4),(2,3)

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