Solve 2x + y = 5
2x-y=2
Answers
2x + y = 5 ---------------> (i)
2x - y = 2 ----------------> (ii)
By elimination method
2x + y = 5
2x - y = 2
=4x = 7 [y gets eliminated]
=> x = 4/7
Putting the value of x in equation 1
2×4/7 + y = 5
=> y = 5 - 8/7
=> y = 35-8/7
=> y = 27/7
Therefore x = 4/7 and y = 27/7
I think you have done mistyping.
The second equation must be 2x-y=3
If it is so then
2x + y = 5 -----------> (i)
2x - y = 3 ------------> (ii)
By elimination method
2x + y = 5
2x - y = 3
4x = 8 [y gets eliminated]
=> x = 8/4
=> x = 2
Putting the value of x in equation (i)
2x + y = 5
2×2 + y = 5
=> y = 5-4
=> y = 1
Therefore x = 2 and y = 1
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