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What is the point of intersection of the lines

2x-y=3 and x+y=3

1.(1,2) 2.(3,0) 3.(3,3) 4.(2,1)
asked Nov 6, 2013 in ALGEBRA 1 by angel12 Scholar

1 Answer

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Given that 2x - y = 3 -->`(1)

x + y = 3 -->(2)

Add equation 1 and 2

2x - y = 3

x + y = 3

-------------

3x =    6

x = 6/3

x = 2

Substitute x = 2 in equation (2)

x + y = 3

2 + y = 3

y = 3 - 2

y = 1

Therefore (x , y) =(2 , 1)

 option (4)

answered Nov 6, 2013 by jouis Apprentice

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