SOLUTION: x+2y=3 3x-y=-5

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Question 808183: x+2y=3
3x-y=-5

Answer by mananth(16946) About Me  (Show Source):
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1 x + 2 y = 3 .............1
Total value
3 x -1 y = -5 .............2
Eliminate y
multiply (1)by 1
Multiply (2) by 2
1 x 2 y = 3
6 x -2 y = -10
Add the two equations
7 x = -7
/ 7
x = -1
plug value of x in (1)
1 x + 2 y = 3
-1 + 2 y = 3
2 y = 3 + 1
2 y = 4
y = 2
x=-1,y=2