2x-y+5=0 and x+2y=4 solve by elimination method
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By elimination method,
2x-y+5=0 - - (i)
x+2y-4=0 - - (ii)]×2
Multiplying equation (ii) by 2 and Subtracting equation (ii) from equation (i)
2x - y+5=0 - - (i)
2x+4y-8=0 - - (ii)
- - +
-----------------------
0 -5y+13=0
=> - 5y= - 13
=> y = - 13/ - 5
=> y = 13/5.
Now, Putting the value of y in (i)
2x-(13/5)+5=0
=> 2x = 13/5 - 5
=> 2x = 13 - 25 /5
=> 2x = - 12 /5
=> x = - 12 /(5×2)
=> x = - 12 /10
=> x = - 6/5
Thank you.
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