2x - Y - 4 = 0 3x + Y - 9 = 0 What Is The Solution Set Of The Given System?

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2 Answers

Anonymous Profile
Anonymous answered
X=13/5   Y=6/5
because ,
2X - Y = 4 .....this is the first equation
3X + Y = 9.....this is the second equation
 
frome the first equation Y=9-3X  then substitute this equation with the second equation  
2X-(9-3X)=4
2X-9+3X=4
5X=13
X=13/5 then substitute this X in Y=9-3X 
Y=9-3(13/3)
Y=(45-39)/5
Y=6/5
 
 
chenghui guo Profile
chenghui guo answered
2x - Y - 4 = 0, 3x + Y - 9 = 0.
Y=2x-4,y=9-3x.2x-4=9-3x,5x=13,x=13/5.y=2*13/5-4=6/5.So x=13/5,y=6/5.

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